I have a 90 gallon tank with all the parameters in order. nitras/amonia zero, phosphates zero, calcium above 400.
my question is... all my rocsk have some patches of pinks and purples, the coraline algae, but some also are colored green almost floursent green, some a have red tint and some have darker red/purples tints, after few dyas of putting abase rock or live rock in there i see color starting to grow.
my qestion is what is this color from? is it normal. none of it seems to be hair algae or slime algae, however every few dyas i get a few quarter sized red spots on the sand near the edge of the rocks.. if needed i can upload pictures.
im just worried always wondering...is that good algae, or is that bad. i have treid to scrub a few of the rocks with a tooth brush and the algae doesnt come off like a slime or hair alage would. so what is all the color from? ps color is only where rocks are exposed to light.
heres some pics..thanks alot guys...
these are the colors im talking about. I mean i like the coloration but is it healthy?
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I know this is the good purple coraline alage[IMG]
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thanks so much guys and gals...
