DeLgAdO;1073118; said:you could always buy an O2 test kit and see for yourself.
LiuHsi;1073095; said:I have a 180, with 3 rays, 3 dats and 1 aro.
i run 1 w/d with 1200 gph pump and 2 x ac110, and i run a Rena 400 airpump with 1" airstone...
is this enough oxygen for my tank?