Mystery snail wrinkle foot and stress sliming...

Hi guys,

I don't know what to do. My Mystery snails are floating and reacting badly to the water change I just did, like immediately... I thought it was because of the dirty water (it was cloudy with the tinest bit of snail poop), so I did another water change and they began to float. I have a strong feeling it's cause they were shocked by the sudden water temperature change... What should I do? My bigger one (Spencer) has been stress sliming for some time now, and he has a wrinkled foot. The smaller, new snail, is just shut in their shell. They sometimes come out, walk a bit and then go back in. Spencer kind of hangs out (I just saw him coming out now as i'm writing this tho.). Spencer is also lacking calcium (struggling to create shell) and has only recently started eating zucchini, so maybe that's why he's so stressed and stress sliming?

What are your thoughts?

Tub is not that big, probably around 20L

pH - 7.6
Ammonia - 0
nitrates and nitrites - unknown (will get tests tomorrow)

water changes- once every 3-4 days as there’s no filters...

temperature - 24degrees C

both are tipi toeing and stress sliming (Spencer is stress sliming the most). Sometimes will stay in shell, come out for a bit and then stay in the shell again. Right now they’re on the sides of the floating container and barely standing on their foot. The smaller mystery snail is tipi toeing so badly that if you tilt the container, they’ll fall right of and hang out rather than going straight back in their shell.

any intel will be super helpful! Thank you so much, guys!!

 

If it's just the water change, I believe they might've been shocked by the sudden change of temperature or water parameters.

I've only kept snails for a week and a half, but here is my experience: (may be long, very sorry)

I keep them in a 10 gallon tank with a betta, when I do water changes. I try my best to make the temperature as close as I can, but one time, I believe I failed to do so. My white mystery snail began secreting excess slime, which she has never done. And my black began staying at the top (still below the water level) using his snorkel. I was quite worried that they may die, but they came back to normal after 30 minutes to an hour. Useless stressing for me XDDD

Now I tried taking my snails out of my tank with the same tank water. I don't know if snails can develop trust, but they don't seem to get scared when I pick them up (especially the second time, etc.). But I also kinda baited them with an apple piece -shrug- they happily floated while eating as I cleaned the tank. And I put them back when I finished and the tank was close to its old water temp. When I put them back they continued to eat but one soon let go and walked off. I did notice they were using their snorkels after the change though. But they're still good.

I believe they're pretty hardy, but they really do act different. First time I saw my mystery snail float, I panicked as to why. Was he dying? Nope, he likes to sleep floating or just below the water level. The other is the complete opposite.

Do you have a thermometer? That may help when you're able to return the snails back (as to how close it is to its normal temp/old temp). Do you have a heater?

As to why your snails are secreting extra slime, do you have any other fish in the tank?

Can you send some pics of them? That would greatly help

I may not have a lot of knowledge, but I'll gladly research with you and see what I can find, I just need more info ^^

 

Thank you so much for you long and detailed reply!! Your snails seems super derpy haha

I have attached some picture of their current state (taken right at this moment) and their “setup”. I do have a heater and the temperature has always been 24 degrees Celsius. I really feel like they went through a temperature or water condition shocked because they were fine (at least the smaller one was, Spencer was stress sliming for days and was on his way to getting better...;;; I’m so worried for them! There’s no other fish in the tub and sadly, I don’t have a thermometer on hand (I don’t think).

 

The white tub in the photo with the heater is that what you're keeping them in

 

Thank you so much for you long and detailed reply!! Your snails seems super derpy haha

I have attached some picture of their current state (taken right at this moment) and their “setup”. I do have a heater and the temperature has always been 24 degrees Celsius. I really feel like they went through a temperature or water condition shocked because they were fine (at least the smaller one was, Spencer was stress sliming for days and was on his way to getting better...;;; I’m so worried for them! There’s no other fish in the tub and sadly, I don’t have a thermometer on hand (I don’t think).

Oh I see, do you plan on getting an aquarium? Because mystery snails are known to escape if they don't like the water.

And since you don't have a filter, I don't think they can breathe properly. Do you treat your water?

If not, you chlorine or chloramine may be at a level that's bad for snails/fish/etc. Also, they have BIG stomachs. Since my snails live in a planted tank, they some things to eat from here and there. Even after I feed them their meal, they continue to keep searching.

I suggest leaving food for them that'll last a day, and if it lasts longer than that. Take it out and replace it. Maybe you can skip a day, but they might try to escape. I'm not entirely sure... that's all I can think of so far

But I really suggest trying to get a tank

Edit: your snails look amazing! They're so vibrant too :0

Edit2: Also, have you seen them come out! Have you seen their antennas?

And I'd just like to share Kuro sharing a meal with my Betta, Ryuu:

 

The white tub in the photo with the heater is that what you're keeping them in

Yea, for now... Spencer was originally with my goldfish but I had to seperate him cause he became somewhat sick and now he’s like this...

 

Sorry but your snails have no chance of living in an uncycled tub without a filter , you need to to get them into a cycled tank ASAP or you will loose them, there's nothing whatsoever can be done for them in the tub

 

Oh I see, do you plan on getting an aquarium? Because mystery snails are known to escape if they don't like the water.

And since you don't have a filter, I don't think they can breathe properly. Do you treat your water?

If not, you chlorine or chloramine may be at a level that's bad for snails/fish/etc. Also, they have BIG stomachs. Since my snails live in a planted tank, they some things to eat from here and there. Even after I feed them their meal, they continue to keep searching.


I suggest leaving food for them that'll last a day, and if it lasts longer than that. Take it out and replace it. Maybe you can skip a day, but they might try to escape. I'm not entirely sure... that's all I can think of so far

But I really suggest trying to get a tank

Edit: your snails look amazing! They're so vibrant too :0

Edit2: Also, have you seen them come out! Have you seen their antennas?

And I'd just like to share Kuro sharing a meal with my Betta, Ryuu:
View attachment 746032View attachment 746033

Omg Kuro is so cute!! Spencer used to be with my goldfish but I moved him to the tub cause he got somewhat sick... I just recently got the small purple one like yesterday. The purple one was fine in the water until I did a water change which is so worrying.

As for the climbing out problem, maybe I can use something to cover the top?

I use prime btw, so it shouldn’t be the chlorine problem- this is so hard!!

A

Omg Kuro is so cute!! Spencer used to be with my goldfish but I moved him to the tub cause he got somewhat sick... I just recently got the small purple one like yesterday. The purple one was fine in the water until I did a water change which is so worrying.

As for the climbing out problem, maybe I can use something to cover the top?

I use prime btw, so it shouldn’t be the chlorine problem- this is so hard!!

Also, they come out every now and then and I do see their antenna! Tho the purple one is now always half out (antenna not sticking out) or closed up

 

Yea, for now... Spencer was originally with my goldfish but I had to seperate him cause he became somewhat sick and now he’s like this...

How big was the gold fish tank? Cause both the mystery snails and gold fish poop A LOT, so if they're in a small aquarium (especially one that's not established or without a filter). That's going to be a lot of ammonia

Sorry but your snails have no chance of living in an uncycled tub without a filter , you need to to get them into a cycled tank ASAP or you will loose them, there's nothing whatsoever can be done for them in the tub

I agree, but I'm pretty sure they can last a bit longer compared to fish. Just provide them with food for now and try your best to get a proper place them ASAP The best you can do for now is to research how you can sustain them

Omg Kuro is so cute!! Spencer used to be with my goldfish but I moved him to the tub cause he got somewhat sick... I just recently got the small purple one like yesterday. The purple one was fine in the water until I did a water change which is so worrying.

As for the climbing out problem, maybe I can use something to cover the top?

I use prime btw, so it shouldn’t be the chlorine problem- this is so hard!!

Yeah, cover the top, but make sure they can still get air. I suggest a plastic wrap and poke them with holes (this is very temporary though). Or maybe a lid and you drill some holes.

And ohh, that's good that you have a dechlorinator. So maybe it was just the temperature shock. Not completely sure though. However, I did some research to keeping mystery snails in a bucket, you can do it but it definitely will be way harder

 

Sorry but your snails have no chance of living in an uncycled tub without a filter , you need to to get them into a cycled tank ASAP or you will loose them, there's nothing whatsoever can be done for them in the tub

oh dang!! What should I do? I have stability, should I add that into the tub? I’m scared it might cause a new tank syndrome (not sure if that causes any problems tho)

How big was the gold fish tank? Cause both the mystery snails and gold fish poop A LOT, so if they're in a small aquarium (especially one that's not established or without a filter). That's going to be a lot of ammonia


I agree, but I'm pretty sure they can last a bit longer compared to fish. Just provide them with food for now and try your best to get a proper place them ASAP The best you can do for now is to research how you can sustain them


Yeah, cover the top, but make sure they can still get air. I suggest a plastic wrap and poke them with holes (this is very temporary though). Or maybe a lid and you drill some holes.

And ohh, that's good that you have a dechlorinator. So maybe it was just the temperature shock. Not completely sure though. However, I did some research to keeping mystery snails in a bucket, you can do it but it definitely will be way harder

Uggghh it doesn’t help that my goldfish tank is OVERSTOCKED (my mum forced my to keep her comet with my fancy (I only have 1 fish, she has multiples...) and I’m currently looking for a pond to move them out of (

it also doesn’t help that when I was medicating the tank (due to ich) and did water changes (made sure the the meds were out) the bacteria colony all died... I added stability to what the tank needed And waited for almost a week before putting Spencer in, but he reacted badly, which was why I placed him in the tub in the first place.. omg it’s all coming together and I feel so bad for it. Do you think I should add stability to the tub? Im worried that in my next water change, it might get rid of the majority of the good bacteria

 

Uggghh it doesn’t help that my goldfish tank is OVERSTOCKED (my mum forced my to keep her comet with my fancy (I only have 1 fish, she has multiples...) and I’m currently looking for a pond to move them out of (

it also doesn’t help that when I was medicating the tank (due to ich) and did water changes (made sure the the meds were out) the bacteria colony all died... I added stability to what the tank needed And waited for almost a week before putting Spencer in, but he reacted badly, which was why I placed him in the tub in the first place.. omg it’s all coming together and I feel so bad for it. Do you think I should add stability to the tub? Im worried that in my next water change, it might get rid of the majority of the good bacteria

Sorry, but how big is the tank? Like how many gallons of water can it hold? Can you specify the amount of fish inside?

And dang, that really sucks on having to repopulate BBs, but it's okay, you can do it!

I don't think you should add Stability (yet at least) as it may just be waste. I suggest doing water changes everyday, and that's a lot of work but basically the best thing you do right now

As for the tank, try convincing your mom that overstocked aquariums won't do. I had to explain to my mom that not everything she points at will be able to fit in our 10 gallon tank XDDD nor is it compatible with the plan XD

But I really do hope you snails pull through! This'll be really hard, but you can do it!

Honestly, if I could, I would keep your snails in my vacant aquarium until you're ready to have them back again, but... yeah XDDD

I suggest a lot of research; it'll definitely help

 

Sorry, but how big is the tank? Like how many gallons of water can it hold? Can you specify the amount of fish inside?

And dang, that really sucks on having to repopulate BBs, but it's okay, you can do it!

I don't think you should add Stability (yet at least) as it may just be waste. I suggest doing water changes everyday, and that's a lot of work but basically the best thing you do right now

As for the tank, try convincing your mom that overstocked aquariums won't do. I had to explain to my mom that not everything she points at will be able to fit in our 10 gallon tank XDDD nor is it compatible with the plan XD

But I really do hope you snails pull through! This'll be really hard, but you can do it!

Honestly, if I could, I would keep your snails in my vacant aquarium until you're ready to have them back again, but... yeah XDDD

I suggest a lot of research; it'll definitely help

Ok!! I definitely convinced her, I just need the dang pond now!! XDD

a small update, Spencer and little purple was out and about, moving all over the place for a short while, then stopped moving. I can’t tell if little purple went back to being lethargic or if they’re just scared half to death by Spencer...Since my yabby (Zeus) is hardy as heck, I stole his filter and stuffed it into the snail tub (it a good clean first, in tank water ofc!), then I added a small amount of stability to the tub so it can collinate in the filter. The two are actually quite active right now but I don’t wanna jinx it. I know the filter did nothing cause I have yet to add them into the tub haha

as for the goldfish, there are 7 in a 43 gallon tank, 6 of which are my mothers and are comets...

 

Ok!! I definitely convinced her, I just need the dang pond now!! XDD

a small update, Spencer and little purple was out and about, moving all over the place for a short while, then stopped moving. I can’t tell if little purple went back to being lethargic or if they’re just scared half to death by Spencer...Since my yabby (Zeus) is hardy as heck, I stole his filter and stuffed it into the snail tub (it a good clean first, in tank water ofc!), then I added a small amount of stability to the tub so it can collinate in the filter. The two are actually quite active right now but I don’t wanna jinx it. I know the filter did nothing cause I have yet to add them into the tub haha

as for the goldfish, there are 7 in a 43 gallon tank, 6 of which are my mothers and are comets...

What kind of animal did you steal the filter from XDDDD and that's good! Glad they're starting to move

Snails really are just strange, they make you worry for absolutely nothing from time to time. But at the same time, they're so cute XDDD

I believe the filter won't really be able to do much if it's not filtered, and if the filter you stole from is a fish, better to give it back XDDD (I think) since snails can also breathe air, the only problem now is ammonia/nitrites

Your snails look so good! I love the sheer size of the gold one and the shell of the purple one :0

 

What kind of animal did you steal the filter from XDDDD and that's good! Glad they're starting to move

Snails really are just strange, they make you worry for absolutely nothing from time to time. But at the same time, they're so cute XDDD

I believe the filter won't really be able to do much if it's not filtered, and if the filter you stole from is a fish, better to give it back XDDD (I think) since snails can also breathe air, the only problem now is ammonia/nitrites

Your snails look so good! I love the sheer size of the gold one and the shell of the purple one :0

yabby, AKA a crayfish!!! The filter is fully “filtered” and should be packed filled with good bacteria as it has it did come from a cycled tank!

Zeus, my crayfish, better suck it up as these cute snails lives are on the line!!

So, hopefully the filter does something about the ammonia and nitrite levels now!

also, thank you so much!! I live in Australia, so the purple varieties are considered super rare, so little purple definitely cost me a fortune haha (not that I really care about their price right now)

Spencer (the black mystery snail with a “gold? Bronze?” Shell) was around since last semester! He has grown so much and I love him to bits!!! Unfortunately he’s struggling to grow out his shell but I’m making sure he’s eating a whole ton of zucchini and hikari crab cuisine!!

 

yabby, AKA a crayfish!!! The filter is fully “filtered” and should be packed filled with good bacteria as it has it did come from a cycled tank!

Zeus, my crayfish, better suck it up as these cute snails lives are on the line!!

So, hopefully the filter does something about the ammonia and nitrite levels now!

also, thank you so much!! I live in Australia, so the purple varieties are considered super rare, so little purple definitely cost me a fortune haha (not that I really care about their price right now)

Spencer (the black mystery snail with a “gold? Bronze?” Shell) was around since last semester! He has grown so much and I love him to bits!!! Unfortunately he’s struggling to grow out his shell but I’m making sure he’s eating a whole ton of zucchini and hikari crab cuisine!!

Ohh, I see I see, that's good!

Yeah, I've never seen one THAT purple before so... it's amazing. And no wonder the "gold" mystery snail looks WAY bigger XDDD

For me, I've been feeding my snails spinach since they devoured all the white fungus in my tank within five days... plus- I believe they love spinach. They devour spinach, and hunt it down like madmen XDDD

This was my tank before and after I got snails
Before:


After (the snails cleaned up the driftwood):


Now:



So far, Shiro (gold mystery snail) seems to have grown a lot (especially her antennas)

But for real, I wish you the best! I really hope there's no casualties, but... hope for the best but expect the worst ^^

 

Ohh, I see I see, that's good!

Yeah, I've never seen one THAT purple before so... it's amazing. And no wonder the "gold" mystery snail looks WAY bigger XDDD

For me, I've been feeding my snails spinach since they devoured all the white fungus in my tank within five days... plus- I believe they love spinach. They devour spinach, and hunt it down like madmen XDDD

This was my tank before and after I got snails
Before:
View attachment 746054
After (the snails cleaned up the driftwood):
View attachment 746055
Now:
View attachment 746056

So far, Shiro (gold mystery snail) seems to have grown a lot (especially her antennas)

But for real, I wish you the best! I really hope there's no casualties, but... hope for the best but expect the worst ^^

Spencer is oddly picky haha so he said no to spinach XD he even said no to zucchini for a long while!

Omg your tank is beautiful!!! They definitely did a great job cleaning the driftwood haha

Spencer is similar to Shiro!! His antennas grew so much these past few days. I love seeing it wave around, it’s adorable

honestly thank you so, so, SO MUCH!! Without you, I don’t think I would be coping with this as well as I am now . Thank you so much for allowing me to see your snail family, as well as ryuu. They definitely made my day.

 

Spencer is oddly picky haha so he said no to spinach XD he even said no to zucchini for a long while!

Omg your tank is beautiful!!! They definitely did a great job cleaning the driftwood haha

Spencer is similar to Shiro!! His antennas grew so much these past few days. I love seeing it wave around, it’s adorable

honestly thank you so, so, SO MUCH!! Without you, I don’t think I would be coping with this as well as I am now . Thank you so much for allowing me to see your snail family, as well as ryuu. They definitely made my day.

Of course, no problem! I'm really glad I could help you though, but I honestly did nothing much though, and who knows how right I am XDDD

For such small creatures they sure are really picky in your case XDDD but their antennas are truly mesmerizing though XDDD

And thank you as well, am really glad I could help you. I wish you the best of luck!

 

Of course, no problem! I'm really glad I could help you though, but I honestly did nothing much though, and who knows how right I am XDDD

For such small creatures they sure are really picky in your case XDDD but their antennas are truly mesmerizing though XDDD

And thank you as well, am really glad I could help you. I wish you the best of luck!

Ok just a small update.

when I put Spencer and little purple directly into the tub, they act extremely healthy and then I’d go and come back and both are hidden in their shell and little purple would be floating as well... they do this every single time I add them into the tub so I waited until this morning to check on them and little purple has not moved at all and Spencer has moved location but not too far. Both were in their shell and was sliming a whole ton. I have no idea what’s going on cause they’re almost always somewhat active when floating in a container, but the moment I add them into the tub, they act like they’re about to die...

 

Ok just a small update.

when I put Spencer and little purple directly into the tub, they act extremely healthy and then I’d go and come back and both are hidden in their shell and little purple would be floating as well... they do this every single time I add them into the tub so I waited until this morning to check on them and little purple has not moved at all and Spencer has moved location but not too far. Both were in their shell and was sliming a whole ton. I have no idea what’s going on cause they’re almost always somewhat active when floating in a container, but the moment I add them into the tub, they act like they’re about to die...

Wow, I don't even know at this point, maybe they hate the tub? How's the other aquariums doing? I think they really need to get to an aquarium as you can see, they seem to hate the tub. For such small creatures they have so much personality XD

Mine is also acting up... I think I should've acclimated my snails (temp wise) before adding them into the aquarium... now he's just standing still on the gravel facing the corner ._.?

 

I will start off by saying that mystery snails floating is usually normal as they breathe oxygen from the surface and sometimes get air trapped in their shells.
Mystery snails also tend to be active for a couple hours then dormant for a couple. That’s what I’ve noticed with mine anyway.
Depending on how big of a temp difference it was, it could’ve possibly shocked them, but I’ve noticed with snails (especially mysteries) that they are not even slightly bothered if the temperature difference is small.
This may seem like a dumb question, but did you add water conditioner? sometimes we forget what may seem like the most obvious step. Perhaps the water wasn’t conditioned, they were having trouble with the chlorine but then the chlorine dissipated?
That is my thought process rn. It’s going to be hard to put a pin on what upset them, especially in their current setup.

 

Wow, I don't even know at this point, maybe they hate the tub? How's the other aquariums doing? I think they really need to get to an aquarium as you can see, they seem to hate the tub. For such small creatures they have so much personality XD

Mine is also acting up... I think I should've acclimated my snails (temp wise) before adding them into the aquarium... now he's just standing still on the gravel facing the corner ._.?

maybe they don’t like the rub after all- that’s so weird, now your one is acting up ;;;

maybe try giving it an air bath?

I will start off by saying that mystery snails floating is usually normal as they breathe oxygen from the surface and sometimes get air trapped in their shells.
Mystery snails also tend to be active for a couple hours then dormant for a couple. That’s what I’ve noticed with mine anyway.
Depending on how big of a temp difference it was, it could’ve possibly shocked them, but I’ve noticed with snails (especially mysteries) that they are not even slightly bothered if the temperature difference is small.
This may seem like a dumb question, but did you add water conditioner? sometimes we forget what may seem like the most obvious step. Perhaps the water wasn’t conditioned, they were having trouble with the chlorine but then the chlorine dissipated?
That is my thought process rn. It’s going to be hard to put a pin on what upset them, especially in their current setup.

the thing about mine is that they act sluggish when they’re out of their shell, and Spencer reacts slowly when I touch him.
I’ve added prime into the water, pH is 7.6~, ammonia is 0, nitrate and nitrites are 0 as well.

I remember adding prime every time I did water changes. Right now I did a full 100% water change cause I have a feeling the filter spiked the ammonia levels cause it did make the water a little dirty. Could it be that they’re literally sick from something like bacteria and not water conditions?

 

maybe they don’t like the rub after all- that’s so weird, now your one is acting up ;;;

maybe try giving it an air bath?

Mine has recovered, I put the pieces together and figured that the snails stay put every after water change. They seem to be exhausted after it (or trying to get used to the new water), but so far so good, no harm ^^

the thing about mine is that they act sluggish when they’re out of their shell, and Spencer reacts slowly when I touch him.
I’ve added prime into the water, pH is 7.6~, ammonia is 0, nitrate and nitrites are 0 as well.

I remember adding prime every time I did water changes. Right now I did a full 100% water change cause I have a feeling the filter spiked the ammonia levels cause it did make the water a little dirty. Could it be that they’re literally sick from something like bacteria and not water conditions?

I did a bit of research, and maybe try putting decor in the tank? It'll make them feel safer. Apparently they like things to hide in and leaving them in the bare open makes them feel vulnerable.

"I think of it this way: the decorations are nice to our eyes, for snails they're functional. Do you see snails live in totally open places in the wild? No, they only cross them when needed. It's a scary place for a snail if he can't hide anywhere but in his own shell."
- Etana from PetSnails Forum

Seems pretty valid to me.

I just searched up "Do snails get bored?" And you can get a lot of answers. So far, try putting something in the tank to make them feel safe

 

So one more thing possibly worth looking into that hasn't been mentioned (that I noticed at least) your golden snail appears calcium deficient. I edited your photo and highlighted the section of shell that is new, you can see the growth lines changed.

I would guess this amount of growth took about 1-2 months.



Do you have soft water?

 

So one more thing possibly worth looking into that hasn't been mentioned (that I noticed at least) your golden snail appears calcium deficient. I edited your photo and highlighted the section of shell that is new, you can see the growth lines changed.

I would guess this amount of growth took about 1-2 months.
View attachment 746873

Do you have soft water?

Ohhh truee, so that's how calcium deficiency looks like, thank you for that XDDD

 

Ohhh truee, so that's how calcium deficiency looks like, thank you for that XDDD

I'm pretty sure that's what it looks like. I had an issue with it on mine that are yellow on gold and it looked like that but lighter colored. I think it might look darker because of the black foot in this example. I could be wrong too, maybe it's an excess of some other type. Either way though that growth doesn't look quite right.

To cure mine then, in breeding parameter tanks for rasbora (crazy low hardness and pH), I just fed them snello. Now in moderately soft water (not breeding sofy water ATM) I have less issues and just target feed pleco wafers. At about 6 degrees (or more) general hardness I don't see lines like that. Here's one born and raised at 6 degrees, I don't have any pictures of the ones I had in the softer acidic water but it looked pretty similar to op. They would grow out a pattern from switching between tanks/parameters too.

 

I'm pretty sure that's what it looks like. I had an issue with it on mine that are yellow on gold and it looked like that but lighter colored. I think it might look darker because of the black foot in this example. I could be wrong too, maybe it's an excess of some other type. Either way though that growth doesn't look quite right.

To cure mine then, in breeding parameter tanks for rasbora (crazy low hardness and pH), I just fed them snello. Now in moderately soft water (not breeding sofy water ATM) I have less issues and just target feed pleco wafers. At about 6 degrees (or more) general hardness I don't see lines like that. Here's one born and raised at 6 degrees, I don't have any pictures of the ones I had in the softer acidic water but it looked pretty similar to op. They would grow out a pattern from switching between tanks/parameters too.
View attachment 746891

Ohhh, that's really interesting, thank you for the new info XDDD

I've had mine for 12 days so I'm still pretty new, and one of my snails have weird patterns on the shell (it's like its "cracked" lines):


He's never had it before but I guess he's growing in my tank, I've been feeding him spinach for calcium and he devours it with my other mystery snail. But my other mystery snail has no problem with her shells (just yet anyways):

 

Mine has recovered, I put the pieces together and figured that the snails stay put every after water change. They seem to be exhausted after it (or trying to get used to the new water), but so far so good, no harm ^^


I did a bit of research, and maybe try putting decor in the tank? It'll make them feel safer. Apparently they like things to hide in and leaving them in the bare open makes them feel vulnerable.

"I think of it this way: the decorations are nice to our eyes, for snails they're functional. Do you see snails live in totally open places in the wild? No, they only cross them when needed. It's a scary place for a snail if he can't hide anywhere but in his own shell."
- Etana from PetSnails Forum

Seems pretty valid to me.

I just searched up "Do snails get bored?" And you can get a lot of answers. So far, try putting something in the tank to make them feel safe

ohh decorations could definitely help! So I’ve done a 100% and matched the parameters (pH 7.6, ammonia 0, nitrates and nitrites 0). The temperature is the same (24 degrees Celsius). I’ve noticed that every time I put Spencer in the bucket, he would crawl around for a bit and then hide in his shell, I’m wondering if it’s cause of the strong water Flow due to the filter? Tho he has been doing this before I have even added the filter in. He’s always out in the floating container tho. I managed to get him to eat quite a bit before i put him in the tub which was good. As for little purple, they’re haven’t really come out besides hanging out a little when I float them in a container... I have no idea what’s wrong with them since the water parameters are pristine. Bacteria was added and the filter came from a cycled tank. I am so stumped and I don’t want them to die..

So one more thing possibly worth looking into that hasn't been mentioned (that I noticed at least) your golden snail appears calcium deficient. I edited your photo and highlighted the section of shell that is new, you can see the growth lines changed.

I would guess this amount of growth took about 1-2 months.
View attachment 746873

Do you have soft water?

yea, Spencer is definitely having shell growth problems. I think Australian waters are generally “soft” but the last time I tested my GH and KH at a pet store, the GH was 8 (143.2ppm) and the KH was 10 (179ppm). Is that good enough for snails? I was told that it’s good enough for yabbies/crayfish

 

Back then before I fixed the flow of my filter, the water currents were really strong, but it didn't faze either of my snails. They just did what they did; roam, eat, sleep, float, etc.

But I think try adding some decor, let me know how they react. Maybe if you have spare gravel you can use that too

 

Back then before I fixed the flow of my filter, the water currents were really strong, but it didn't faze either of my snails. They just did what they did; roam, eat, sleep, float, etc.

But I think try adding some decor, let me know how they react. Maybe if you have spare gravel you can use that too

I’ll give the gravel a try since I have some spare! I’m hoping it works because I have no idea what else is hurting them since the water quality is practically perfect.. I’ll let you know what happens when I add some!!
Thank you so much for not giving up on this situation, you’re the best!!

 

I’ll give the gravel a try since I have some spare! I’m hoping it works because I have no idea what else is hurting them since the water quality is practically perfect.. I’ll let you know what happens when I add some!!
Thank you so much for not giving up on this situation, you’re the best!!

No problem! I'm also new and just learning from you as well so... try putting spare decor as gravel won't do much ^^