I have a refugium and I do have some surface movement. I have 2 of the 4 out pipes half submerged bc if power goes out it will pull in air and not drain the tank and over flow the refugium. I could possibly get a valve and reduce the water flow if needed. I went ahead and got the 30$ package of fert from that website that comes with 2 bottles. And how much should I raise the bubble count? Just do it like a few bubbles at a time and wait to see what happens? And I will stop running the halides and change the other lights to 8 hrs or are they ok at 6?