How Long Does It Take For Assassin Snails To Grow?

Anyone know how long till they grow enough where you see they’re yellow and black stripes?

 

Funny you asked today. I bought an adult, JUST ONE, four months ago. This morning I found a tiny spec of a baby. So weird. I read that it can take 21-30 days to hatch, then it’s burrowed until this size. How long she held the eggs, no idea.

It’s the size of a half of grain of rice.

 

Yea because I just saw these weird snails today after I did a water change and they don’t look like pond snails I thought only ramshorn and pond snails hitch a ride on plants. I hope they’re not Assassin snails, yea I have quite a bit of rams and pond snails but I also have mystery’s and nerites too and I don’t want them to get eaten.

 

Yea because I just saw these weird snails today after I did a water change and they don’t look like pond snails I thought only ramshorn and pond snails hitch a ride on plants. I hope they’re not Assassin snails, yea I have quite a bit of rams and pond snails but I also have mystery’s and nerites too and I don’t want them to get eaten.

Maybe it’s an MTS? especially if you’re not seeing the stripes.

 

Maybe it’s an MTS? especially if you’re not seeing the stripes.

Hopefully! I’m not seeing any strips yet and they are near to the size of a grain of rice so hopefully it’s mts

 

Hopefully! I’m not seeing any strips yet and they are near to the size of a grain of rice so hopefully it’s mts

Probably so then, this thing is so tiny (that pic is zoomed) and it’s already quite clear what it is.

 

I agree, the black and yellow bands are easily noticeable on very tiny baby assassin snails. But I wouldn't worry about nerite snails, they have a trap door, I've kept the two together for years in multiple tanks. Unless the assassin population gets out of control, they won't hurt the nerites. They do like to gang up though when there's a lot of them and take out any weak animals. Just to let you know.

 

Thank you for that info, well I’ll have to wait and see if they are or not.

 

I have a few assassin snails that have bred, I see dozens of little snails constantly but never seem to see them full size.

Any one have any ideas or suggestions?

Thanks!!

 

Assassins are notorious for burrowing. If you see 5 assassin snails on a regular basis you may well have 50 in and under the substrate. I had a few in a 10 gallon that I shut down and emptied and it took me hours to pick the assassins out of the substrate, many of them juveniles. That may well explain it. I was using Eco Complete for that tank and still they dug themselves in.

 

It's a bare bottom tank, with the exception of a few containers with old Amazonia and some plants. I see the adults, I just never see the baby assassins become adult assassins.

here's a picture.

 

the coloring is wrong. are you sure it isn't a bladder snail?

 

I do not have any other snails in that tank. Maybe the other is hidden in the little substrate I have.

Ok thanks!!

 

The pictured snail is not an assassin.

A watched pot never boils. When you take your eyes off of them you see the growth happening.

 

I agree - that does not look like an assassin snail. My assassins laid cube-like eggs, and many weeks later they hatched. It was months before I saw the striped babies. However, once I began to see them, they began to grow quite quickly. It seems that the more protein they have access to, the more quickly they grow.

 

That looks like a Malaysian trumpet snail.

 

So I have the squarish eggs that cling to plants. I don't see any baby assassin snails. Hmmm I wonder where they go.

 

Those are assassin eggs. They take two months to hatch. Then the babies go into the substrate. It may take several months for them to be visible and for them to come up out of the substrate.

 

I see. Well those eggs have been there for awhile. They have hatched and still no assassin snails after several months.
Is this due to having too many full grown adult assassin snails?

There are 8 adults in a 30 gallon. I wonder how I don't see baby assassin snails, yet baby MTSs are proliferous

Thanks all in advance!

 

I expect they will show up soon. There won't be a large number of them - they aren't as prolific as MTSs – but you should see one or two, here and there, in the next month or so. They are very tiny and striped like the adults. Keep a close eye on the substrate and on the tank glass.

My original 4 in a 10 gallon multiplied to 20+. (They are now all in a 20 long with one betta fish.) Food supply shortage is the only reason I can think of that would cause baby assassins to perish. If you have lots of baby MTSs, then there should be plenty of food.

 

ok thanks. I'll keep an eye out. It's been months and still no new assassins.

 

Yeah, the snail pictured is probably a Malaysian trumpet. Your assassins may be laying eggs that get eaten by the MTS, or maybe the eggs are infertile. The babies could also be burrowing, as others have mentioned. You’d be surprised how many baby assassins can fit into a tiny amount of substrate and not come out for months. It’s kind of fascinating. Just be patient, and babies should appear eventually.

 

How effective are assassin snails at curing malaysian trumpets? I'm well tired of picking them out of the tank but they seem more resilient than other snail species. My single loach doesn't seem to be preying on them like I've seen him do with other snail species so they appear to be particularly resilient.