I have an old filter that I've read about turning into a HOB refugium for growing pods and nitrate reduction.
Guy at the LFS says an old HOB filter (about the size for a 60 gal tank) in my 55g won't really do much for the nitrates but will still be excellent for growing pods.
True/False?
If it won't help with the nitrates, other than keeping up with PWCs, how else can I keep nitrates down?
Guy at the LFS says an old HOB filter (about the size for a 60 gal tank) in my 55g won't really do much for the nitrates but will still be excellent for growing pods.
True/False?
If it won't help with the nitrates, other than keeping up with PWCs, how else can I keep nitrates down?