As some of you know, I currently have a 30g cube tied into the main 120g that is serving as a frag growout tank. The whole setup has been up for a few weeks now, and as far as diatom blooms go, it lasted a couple days and then subsided . . . in the main tank. It's been 4 days since I cleaned the glass of the main tank, and it doesn't look bad at all. The 30g however is a whole different ballgame. I'm having a REALLY bad HairAlgae breakout- to the point that i can barely see into the tank! I've never had it this bad. And again, the main tank is spotless! Anybody know what could be going on? The fact that I only have a few snails in there doesn't help much, and the hermits can't climb the walls to get to the stuff up high . . . the tank is also a BB, but with pretty good flow in there. Another thing that may be a cause is that I have the calcium reactor's effluent dripping into the 30g. maybe that could have an effect? If anything though, I would think that the slightly higher alk and calcium would keep the algae in check! help if ya can! I hope to be able to go get some more snails on Thursday .