Does anyone know what causes red slime to grow on your LR and LS? I have a 29 gal tank with 3" LS, 45 lbs LR, half dozen crabs and snails, 4 small fish (clown, chromis, damsel, gramma). I am running a Aqua Clear 200 filter, SeaClone 50 Protien Skimmer. Water temp. 78 Deg., SG 1.024...