red sea max 260

Hi All, Hope all is well with everyone. I'm new to reef tanks, but I do care for 2 freshwater tanks. I'm currently cycling my reef tank. It's a Red Sea Max E260 (has a rear sump with 2 return pumps and skimmer with a pump as well). I've been having some trouble with the temperature of my tank...

Hi all, i have had a Red Sea Max E 260 set up for over a month now and one thing that has left me scratching my head in frustration is how the water level in the sump and rear chamber is constantly fluctuating so much so that the stock ATO is constantly dumping the whole reservoir of RO water...