So I placed my fish with marine velvet into my cycled 20 gallon quarantine tank a week ago. Just tested for ammonia and there are amounts of it in the tank! So I did a 20% wc just a couple of hours ago. I re-added the amount of copper recommended back into the tank. My question is, how do I treat my sick fish with copper when the tank keeps creating ammonia? The copper is killing the beneficial bacteria and therefore there isn't anything to eat it up. How do I keep my fish alive while treating them when ammonia is present? Is wc the only answer? I would have to do it everyday! Also I need to keep my display tank fishless for about 2 months, how do I keep up with keeping my fish in the quarantine alive? So confused and need a lot of advice please! How do you run your quarantines? How do you keep the fish alive and treat them at the same time without the ammonia killing them?