I have a lot of green slimy algae in my tank. It is a brackish tank with an SG of about 1.006. The lighting is about 1 watt per gallon. And I fert on and off. I have a fake plants (which were totally covered), a java fern, val, and sag grass. I don't mind a little of the stuff but it is growing on my plants and I'm afraid it may be the reason for some of the leaf loss I've had lately. Any suggestions?