| Live Rock For Begininers
I have had a 75 gallon aquarium up and running for about 6 months now and I have a few damsels and a few Live rocks and some tufa and lava rock, with crushed coral substrate. I have noticed that my tufa and lava rock and the coral substrate have changed color. Is it possible that the organisms in the live rock are spreading to the other rocks or is it just algae. Is it a good or bad sign? Thanks |