My 60g is up and running. It is a 60g rimless with an open top canopy. At the top of the canopy about 9 inches from the water I have a new Radion LED mounted. I use a Vortech 10 and a mag 7 for a return. The room temp stays around 77-78 (I have a room thermometer) and the thermostat is set at 76.My tank temp stays around 82. I have a good friend who says it is the Mag. I trust him but wanted to get any other input before I order a new return pump. Also please let me know what pumps run the "coolest". Thanks!