I had no algae during cycling and there is just a little appeared over the last few days since I added fish. Just wondering what type of algae this actually is It is on the Java Moss attached to my driftwood. It is right at the surface so I guess this is just getting more of the light than elsewhere but just want to check in case it spreads. I will be getting some Amazon Frogbit hopefully tomorrow which I believe should suck up some of these nutrients. Ammonia / Nitrite are 0 and Nitrates are < 20. Lights are 2 x 45W T5s on for 3 hours in the morning and a further 3 hours in the evening. Tank is 180l.