Bristle stars & Crabs eat the poop w/o skimming, Kalkwasser in makeup water supply cal & maintain alk. Mag & Strontium & trace dosing is necessary. 120gal, 17fish, Montipora is only sps & new to tank but my LPS, Leathers, Mushrooms, Polyps & Softs multiply. I grow for others tanks. = works 4 me