I did a 100% water change 8 weeks ago. I am using amo rocks in my filter. I have a 75 gallon tank. No fish right now. Using strong filter, undergravel filter attached to strong current flow, and 2 heaters. any suggestions? local pet dept checked my water. They use same liquid testing kit as i do.
I am set up for a biological filter. It is not taking the ammonia out. I have strong water current and good water circulation in UGF.
I am set up for a biological filter. It is not taking the ammonia out. I have strong water current and good water circulation in UGF.