Hello everybody, I am resorting over to my good friends at R2R.com to help me out. I have a 38g mixed reef tank (not many corals yet) and it recently has been dealing with dinoflagellates. My basic nitrate, nitrite, ph, kh, etc. is okay. I am running 2 AI 16HD lights. I need help trying to fix my algae problems. I don't want to kill my whole tank doing something dumb like hydrogen peroxide. I just want a natural solution that will work. Should I do more frequent water changes every week? I just want some honest advice. Thanks to anybody that helps.