i have a nano tank with some coral in it.. i have some mushroom coral and i cant remember what this other is called but it has a bunch of green little fan things that come out ... it has not been out in about a week because there is so much red slime on it ... i have a bottle of biodegradable red slime algae cure that is safe for corals that i have been using.. it doesnt seem to be clearing it up much .. what can i do... where i bought it .. the guy said that it was photosynthetic soo should i shut the light off so the algae doesnt grow or will that bother the coral??? 100 dollars worth of coral please help!!