Fish at the top of the tank.

[laingdda]

I have guppies and two tetras that are swimming at the top the tank and I think they are breathing at the the top. My Cory are acting normally. I have checked nitrite, nitrate and ammonia. What could cause this?

 

[AquaBarb]

Have you added anything new to the tank lately? Driftwood for example, any chemicals?

Id wipe your tank glass down with a clean sponge, gravel vac the substrate and do a large water change to start with. (75%)

Id do this every day till you find the cause.

 

[Colin_T]

Pictures and video of the fish?

 

[Barry Tetra]

How to post a video on TFF; post it on youtube, copy the link and paste it here.