This, I know, is a stupid question... what is "GFO"??
I have had my reef tank for going on 2 yrs, and am also battling HA. Keeping it under control but it takes over an hour weekly, I take the rocks out and scrub w/ wire brush (equip too). Real pain in the XXX. Am using carbon, RO water (this is a recent change from bottled spring water). It's getting better, but I know if I turn my back for a second it will be out of control again.
Thanks
I have had my reef tank for going on 2 yrs, and am also battling HA. Keeping it under control but it takes over an hour weekly, I take the rocks out and scrub w/ wire brush (equip too). Real pain in the XXX. Am using carbon, RO water (this is a recent change from bottled spring water). It's getting better, but I know if I turn my back for a second it will be out of control again.
Thanks