Originally Posted by Boolay1978
My live rocks had red alge on which I was told was good? But a day later they are quickly being covered in green alge it's quite fluffy. Should i do any thing tank has been running for just over a day.
There are good types of red algae and there are bad types. An example of a bad type of algae would be Cyanobacteria, which looks like red slime.
The fluffy algae that you are talking about could be hair algae, which is a nuisance.
At this point, I am not sure that I would do anything since the tank was just setup.