bottom feeder
Member
Hello all just wondering if anyone had any input on bio balls,<aka nitrate farms>.Ive got them in my sump now tank has been up 2.5 months and has gone through its cycle.Just wondering if i should remove them now that im cycled,also would porus rock be benifical ?In other words what is the best materal to use in a sump of a 75 gal reef setup.water test are all good