One guppy seems to periodically get the shimmies and another is in the top corner

I recently got 5 fancy guppies and 2 of them are acting strange, one of them seems to be getting the shimmies every now and then and another very young one mostly stays at the top of the tank, from the store I noticed his fins are a bit nipped or maybe he had fin rot I'm not sure. The tank is cycling at the moment but I'm regularly doing water changes and testing the water and am keeping the ammonia and nitrites down. I have no idea what's wrong with them, my pH is around 7.8 and the temp stays at about 77 degrees. My ammonia is between 0 and .25 ppm and nitrites and nitrates are both 0

 

Shimmies is a sign of two things that come to mind straight away. Let’s eliminate both. Do you know the GH or hardness of your water?
Do you have other livebearers that have been months in your water?

Have the fish ever been de wormed? Do they look a little thin ?

If you brought the fish from a chain store they will 100% have worms and have not see medication .

 

Shimmies is a sign of two things that come to mind straight away. Let’s eliminate both. Do you know the GH or hardness of your water?
Do you have other livebearers that have been months in your water?

Have the fish ever been de wormed? Do they look a little thin ?

If you brought the fish from a chain store they will 100% have worms and have not see medication .

I don't have any gh test kits and I got them from PetSmart, they look to be a healthy size, one of them is actually quite large. It's a new tank but I had a couple dalmatian mollies about 2 weeks ago in it. They got returned though because they didn't act or look healthy and I couldn't help them. The tank also currently has aquarium salt in it

 

Also what kind of worms exactly are you talking about, and is it actually a 100% guarantee that they have them?? I've never heard that before will they go away on their own or will I have to medicate

 

Live bearers are Notorious for having internal worms. It’s partly how they feed from the substrate and the small amount of money paid to the breeder, wholesaler , exporter, customs , wholesale , retailer then us. Nobody what’s to paid the few cents per fish it costs to treat the fish two times before they sell it to the next person.

As to if it’s 100% certain they have worms. I believe so . However there are many people that say their fish do not poop . Or that their fish poop does not smell. It is as if they somehow feel they are special or they are just so far removed from farming and basic animal husbandry.

After I joined my local fish club I found there are people that have fish that don’t stink and people that have a de worming routine.

Dosing a fish for internal parasites is no different from a cat or dog.
Worms will not go away. They are in all creatures on earth . In small numbers they do no harm when they can they will keep the host alive like all parasites. When a fish is weak the parasites can kill.

A couple of tablets in the water is all you need do .Following the instructions of course.
By all mean research shimmies.

 

I must disagree with the statement about 100% certainty. Unless it's something completely obvious like ich, there's no way anyone can know for sure.

It's true that fish from large box stores, and often from the LFS, will often have health issues.

Something's not right with your test readings. Zeros across the board indicate the tank is not cycling. What kind of test kit are you using? When you have multiple issues, like shimmying and tail rot, water parameters are often the source of the problem. Hanging out at the top can indicate ammonia or nitrite poisoning. Are the gills red? Depending on how long your tank has been set up, there should be ammonia and/or nitrites if the tank is not cycled, and there should be readings of 0, 0, and a nitrate reading if the tank is cycled.

How often do you do water changes, and at what volume?

 

I must disagree with the statement about 100% certainty. Unless it's something completely obvious like ich, there's no way anyone can know for sure.

It's true that fish from large box stores, and often from the LFS, will often have health issues.

Something's not right with your test readings. Zeros across the board indicate the tank is not cycling. What kind of test kit are you using? When you have multiple issues, like shimmying and tail rot, water parameters are often the source of the problem. Hanging out at the top can indicate ammonia or nitrite poisoning. Are the gills red? Depending on how long your tank has been set up, there should be ammonia and/or nitrites if the tank is not cycled, and there should be readings of 0, 0, and a nitrate reading if the tank is cycled.

How often do you do water changes, and at what volume?

The tank isn't cycled and it's cycling right now, I'm using an API mastwr test kit and am keeping up with water changes. I think I found the problem for staying at the top of the tank. I added an air pump and air stone and they started swimming around more so it was lack of oxygen

 

Thanks for the update Gr198868.
Well spotted GuppyDazzle cheers .