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Anyone have a good rule of thumb on how long an ozone generator should be running per day on a 150 gal reef? I've heard from some that it can run 24x7 and others say that I should be running it only a few hours/day. Also, since Ozone aids in water purification and has the ability to kill off...

Anyone have an opinion on this stuff. It's supposed to maintain the Calcium, Alk, and pH all together. It clouds the tank for about an hour after adding the stuff but other than that it seems OK. Just wanted to see if anyone else uses the stuff and what you might think about it. I normally...