Any comments? I going to run a test and just feed frozen brine shrimp. My red algae seemed under control after scrubbing with electric toothbrush,installing poly marine pad, lots of water changes with r/o water and new retro fit lights upgrade, adding I-Bionic, adding snails and other clean up crew like lettuce nutibranch, emerald crab, serpent star (has hardly moved , put him in too fast, but still kicking) but now the red algae seems to be coming back again.