Google white hair algae. I have something similar to what you describe. Seems to grow in the underhangs and not so much in the open.
Yes! And it spreads! I increased the flow, and I'm going to get a controllable power head and a wave pump I believe! What's some good ones that are not $300 like mp40? Also, I'm buying a return pump BC I have a acrylic sump box someone gave me with an overflow box and I've just got to buy stuff to go inside the sump! I figured, adding more and better flow and extra filtration will help! Any kind of way to figure out exactly what kind of return pump I need or any would do?


