Hi, i got 4 Peppered cory's and they seem happy and playful I have a 55 gallon tank. but today i noticed that they are swimming to the surface every few minutes for air. tho they are still playing and chasing each other and i don't see anything wrong they aren't acting strange.
I do know they do go to the surface for air occasionally, But why are they going to the surface every few minutes?
I do have plants in my tank, and only 6 black kuhli loaches. but I'm just wondering any help would be grateful. thank you.