Sheesh, that's a pretty fierce outbreak of green hair. Hope you can get it under control without too much stress. Glad you found your firefish, he looks pretty big!
Did a water change (10 gallons).
Moved the ricordia (the only coral) up to the top. It's doing great.
Bought snails online. They should get here Thursday.
Fish look great. Exceprt of course the firefish. I don't see him very often, maybe twice a week. I don't think I can really do anything, I don't even know where it sleeps. I doubt it will last long.