Well, cyano was gone for awhile but now its back again :evil: dangit. and i have to go home for the weekend so i won't be able to do water changes or keep an eye on it. I have no clue what to try next. Bought some nassarius snails and ceriths to keep my sand sifted but it doesn't seem to be working. With 20 nassarius, 18 cerith, 12 astreas, 2 scarlets, 1 large brittle star, and 1 large serpent star I figured everything would stay clean but nope. Any ideas of what could be causing the cyano prob that i can't friggin get rid of?