if your algae is the green hair algae, then get rid of it as quick as possible!! i have been trying to rid myself of that problem for about 2 months!! got turbos, scarlet and blue leg hermits, and still have a mess.... i have manually "pulled" tons out and finally had to add some chemical to get it out!!! it is clearing out after the second dose! (if it kills anything I will post another reply, but so far nothing is dead yet! :> ) and it has been 4 days!) anyway, if it is not coralline algae GET IT OUT!!!!