 Red algae turning greyish?
The red algae I have all over the bottom of my tank is starting to turn to a grayish color and it is starting to get a hairy texture. I have tried everything/ move powerheads, chemiclean, frequent water changes with vacumming. Will somebody help. I have about 30 sand sifting snails but they are just not cutting eat. Anyother advice and what type of algae is it?
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75 gallon: 1 yellow tang,1 cherub pygmy angel, 1 Kole Tang, 1 lawnmower blenny,1 orangespotted goby, 1 small watchman goby, 1 pearly jawfish, 2 cleaner shrimp, 4 peppermint shrimp, 1 pistol shrimp, 1 sally light foot, 1 emrald crab, 20 hermits, 5 turbos, 12 mexican turbos and 1 brittle star. And a ton of sandsifting snails. Leather toadstool, frogspawn, 2 pulsing xenia, bubble coral, brain coral, elkhorn, flavia, anthelia, a colt, a goniopora and a rock full of zoas. | 
