my aquacontroller jr works great. I have it set to kick on various sets of fans if the temps get too high. I did not need to buy a chiller cause the fans can keep my temp below 81.3 degrees with no issues. I have two 150 halides and 4 48" T5HO over the tank. If for some reason the tank does go above 81.3 the controller starts shutting down lights and pumps one by one till the temp goes back down.
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