I set up my tank a few weeks ago, and had live rock in there to cycle it. After awhile the tank started to get brown algae on the sand and the glass. I was told this was a good thing, and it show that the tank is cycling well. I tested the water and everything was good. So I added 1 snail, 2 hermits, 1 royal gramma, and a coral frag. Everyday the brown algae keeps getting worse and worse, and its making my tank look pretty bad. I scrap some of the algae off of the glass, but it just starts floating around the tank. I was obviously going to get some more snails and hermits, but will they all take care of this?