What is the best invert. or fish to combat green hair algea. I already have about 75 blue leg crabs. Only acouple of snails right now. My 3 tangs only nibble once in a great while on it. I got 75-100 snails on the way now, will be here on tuesday. The green hair algea is not out of control right now. Only a few rock with some on them. I do weekly water changes. I have no readable phosphates with me test kit. Calcium is at 460. Ph is 8.2-8.4 Salinity is 1.023. Less than 5 nitrates almost undected with test kit and 0 nitrites. All help would be appreaciated. Thanks.