I was wondering if anyone could tell me what this is that is growing on my rocks. (It is the red stuff in the picture.) It doesn't appear to be coralline algae because it is jutting out from the rocks. It is popping up on a number of rocks in my tank.
Tank: 12 weeks old, 135 gallon, 180 lbs LR, LS, sump, protein skimmer, AquaMedic 10k MH light, 2 percs, 2 Scarlet cleaners, 1 Serpent star, 1 Sand sifting star, Colony polyps, 4 Bullseye mushrooms, 10 blue legged hermits, 30 assorted snails, 1 Lettuce Caribbean Nudibranch, 1 Emerald Mythrax Crab
Tank: 12 weeks old, 135 gallon, 180 lbs LR, LS, sump, protein skimmer, AquaMedic 10k MH light, 2 percs, 2 Scarlet cleaners, 1 Serpent star, 1 Sand sifting star, Colony polyps, 4 Bullseye mushrooms, 10 blue legged hermits, 30 assorted snails, 1 Lettuce Caribbean Nudibranch, 1 Emerald Mythrax Crab
