What happened to my neons?

[Stacey269]

I've had 4 neons for at least a year now. I change the water once a month and use a gravel vacuum. This time, however, when I did my water change, they all started floating around and ended up dying. All of them! None of my other fish were affected, and they've never had a problem before when I did water changes. Does anyone know what could have happened this time?

 

[canarsie11]

How big is tank?

Water are water parameters?

What else is in the tank with neons?

IMO once a month water change is not enough....... please answer those questions so you can get proper help.

 

[ger87410]

Need to know the parameters of the water you are using to replace the old water with.

 

[ajhainey]

Could you accidentally have contaminated the tank with some kind of cleaner (bleach?) easy to do if you don't have a special fishy bucket/hose etc.

aj xx

 

[Magnolia_360]

Did you forget to dechlorinate the water?