Algae Bloom

Is it typical during a cycle for there to be an initial brown algae bloom followed by the brown algae turning into green algae? It is a bare bottom with all dry rock. I am 2 months into the cycle and the nitrites just started to drop considerably.



Ammonia is 0, Nitrites are 0.05, Nitrates are 7, pH is 8.3, SG is 1.027, Temp 80.0,