Be careful to avoid all 0s with nitrate and phosphate. Your scrubber will get you there. Harvest and feed your tank. Dose if necessary. Algea filtration is far superior to other systems.Chaetos always been finicky for me. I found the horticulture led needs to be a certain distance and not too bright. But if this thing breaks i think ill try the tunze. Im not worried now the ats has dropped my nutrients to almost nothing now!