sponge brain
New Member
I had 50 lbs of live rock that recently started growing some green colored hair type algae. Then I introduced another 50lbs. Within a couple of days, the original green hair on the prior rocks have now started turning into a maroon/dark red color. Can someone explain whats going on ? Also, by reccomendation of the lfs, at the time of loading the new rock, I added Kent Coral Accel and Marc Weiss Coral-Vital. No fish in tank yet, just 3 turbo snails, and with the new rock came clams, a fairly decent size crab, a black colored urchin about the diameter of a nickel, several small anemones, sponges, tons of feather dusters.