I did a water change on Monday, I do one weekly. I tested the water yesterday and ammonia and nitrite are zero and nitrate is 15ppm. I’ll test it again tomorrow. I have other fish in the tank and they’re all fine- it’s just my cory’s
Hi everyone,
I have four black Venezuelan corydoras that I added to my 65 litre last Tuesday. They seemed absolutely fine when I got them and they’re still eating normal, but i’ve noticed two have a white film over their eyes. It started out with one, and now two have it, on both eyes. I did a...