Ok, I've got this translucent or semi-transparent what I would best describe as "fuzz" that grows on the rock in my small display. It doesn't really grow and get to be a nuisance like hair algae but it seems to like good flow and Philips LED lighting. The stuff doesn't get long, I'd say maybe 1/4" or less. Anyone else ever get this? Not sure it would photo well because it is somewhat translucent.