i recently set up my 120gal reef tank and is about 2 months , i have a maroon clown and a powder blue tang, turdo snails, blood shrimp, hermitt crab. i notice today that there is an algea bloom in my tank which looks like tiny individual spikes growing all over the overflow and glass. is this good algea or a start of hair algea ? i tested the water and everything is normal . thx in advance