Cyano

[Baldy]

Hello All,

Ive finally got my cleanup crew set up, my first 2 fish introduced (2 perc clowns), and a bit of coral that hitchhiked on the LR that is doing good in my 75g tank. Its been going for about 1.5-2 months now. i had a bit of an outbreak of hair algae that seems to have subsided, and isnt growing nearly as fast anymore. But now im starting to get more and more cyano growing. it started a bit on a copuple rocks, ive cleaned it off a couple times, but now it is coverng most of the sand, and starting to move up the glass.

My water tests fine. 0 nitrates, ammonia, phos, nitrite, 8 alk, 480 calcium, 8.4 pH.

Is this just part of the process of starting a new tank? will it eventually subside?