Sick Fish - Can't solve the problem

[Aquattro]

Originally Posted by Myka

How big is the treatment tank? CP can definitely affect biological bacteria if you use a significant dose of CP. If you stick to usual dosing of 10-20 mg/L it shouldn't affect biological bacteria. What do you have filtering the treatment tank?

That's the issue. QT is 300g, filtration is 30# rock. Not enough to process a full fish load. Foam isn't a great long term media, but it's available now, fully seeded and ready to go in for short term treatment.