I am doing anywhere from 15-25% 2x per day. Like I said it got to 0 for 4 days and Im not doing anything different..
My only concern with the filters is the biowheel on the HOB
arent even movving any more. Even after the rinse. I think the filters are so clogged its not helping any to rinse them. I dont want to change them either but I almost have to rinse them daily for any proper water flow to move through them.
What if I put a couple more spounges in the tank itself for say a week for bacteria to grow, then pulled one of the filters and replaced it, then the other say a week later??