Hi everyone, I've been trying to fix my bf's 15g tank for a while now. He set it up as a 'local tank' back in August. I've been slowly trying to clean it up, and put a few hardy soft corals in there, but the algae is out of control. No, I do not use tap water... We have many different types of algae in this tank. Right now I'm trying to deal with a very interesting and very dark hunter green hair-like algae. It's almost completely covering a piece of LR: When I started to notice it, it looked like some kind of gel covering up some bubbles on the LR, now it's real long and hairy. It's also completely covering another piece of LR on the total other side of the tank. And that rock is pretty much out of the light and other other rocks, so I guess it doesn't need too much light to grow. Now, we also have a very nice brown algae all over the LR and glass. But it's not growing long and hairy by the minute, like the deep green one. A few weeks ago, we had a red algae bloom that was so bad you couldn't see the back half of the tank. Scrubbed the LR and a bunch of water changes..... He's using a Fluval canister filter, with Bio rings, phosphate remover media (Phos-X) and I'm cleaning the sponges every week. Last week I put Chemi-pure in there. It made the water a little clearer, so I can see the algae grow better. Water parimeters: Temp: 78 Ph: 8.2 Ammonia: 0 Nitrate: 20 Salinity: 1.023 CUC with lots of hermits and snails (they shold be fired) HELP! Thanks!