coraline can depend on the spectrum of lighting pink, red, purple, in lower level areas of light it can even be blue, green, yellow it can come in several colors.just remember its a high calcium alge and needs lots of it to grow _________ karla  75 gall, 80 lbs sand, 110 lb lr, 10k pcs, atinics, emperor 400, prizm skimmer, hagen and maxi jet powerheads |