I had been just about thinking I had my GHA problem at bay, then tonight I looked in my sump and tucked behind where I keep my testers stacked was a massive forest of GHA. So now I'm pretty frustrated with this stuff. I'm going to go lights out completely for a while and I'm going to do a 10-20% water change every day I'm home. I have to get rid of this stuff before I lose my mind. I really don't think I'm overfeeding because every time I feed anything, everything in the tank acts like it is starving. I never see any leftover food anywhere. So I'm not sure where all of the nutrients are coming from. Maybe I need to clean my filter socks more often and finally setup my protein skimmer.