Looking to ID Algae in Sump

[CHEAPREEF]

Originally Posted by DKoKoMan

Ugh... I feel ya. This stuff is the worst to clean as it doesn’t siphon out well and sticks to absolutely everything.

You ever figure out what it is? Thought I had it beat a few weeks ago but after 7 days of nothing in the sump the 8th day was worse than I had seen it before. :/