Well mine have little black spots around the edges and in the middle. No visible "hairs" though. It is starting to get shaded but I don't like it because the growth has also slowed considerably. I may leave it shaded to see if the algae gets thwarted but I like the faster growth with the direct lighting.
Will see if it goes away when I set up a powerhead reactor and pump my CO2
up to 70-90ppm. Hopefully it won't hurt the fish but if I have algae and have an average of 50-60ppm CO2
and my nutrients should be at high enough levels with EI then 70-90 is the next step and a completely efficient reactor should give me that.
The only other thing I need to find is air masks for my fish!
Joannde, fleet enema sold in pharmacies is used to dose PO4
by a lot of people. Somewhere there is a post about how much to dose and how to measure it.