I have red algea growing on my sand bed, the red/purple algea seems to be spreading very quickly on my rocks in the last couple of weeks.
75g tank, 2 1/2 months old, 60lbs lr, 40 lbs ls, 2 fire fish, 1 lawnmower blenny, 1 cleaner shrimp, 1 peppermint, 10 nasarius snails, 10 hermit crabs, 1...