I have a live rock and fish tank. Seems like each day I get more green algea. I clean it off but always comes back. My water levels are fine so not sure what to do with that. But I have live rock leaning in back glass. Only way to clean back is to move the rocks. That's a major pain. Is the answer to not have rocks lean against back glass? I do that to create caves and hiding spots. Later rocks on top of rocks. I have a pure black back drop so using the magnet cleaner I use on front and sides won't work. Was hoping to hear how you guys do it and learn som new ways. Also should I be adding anything to water to help algea? Only fish and live rock. Not coral.