shih87
New member
I have a zero edge tank and that brown film gets on both sides of the acrylic and it **** me off because Phosphates nitrates nitrates all at zero !! I think it's the hose that runs into the filter sock it's gray and kind of see threw and all I see is brown !! So I think I'm going to change it ...
then my brown film issue is worse

Anyway, I may start gradually change to KZ coral sand after my UK trip (next week). I think stronger currents should help.
Don't know, but I hope:xlbirthday: