180G Office Reef Tank

[JDigital]

Originally Posted by lastlight

This is true and I know it from experience. Raising the lower threshold 2 degrees made the peak temp the same amount higher. The lower normal temp is like a buffer when the temperature of the room is higher than your tank. The tank's going to gradually get hotter the entire time the lights are on / room heats up. The swing is the same but at least you peak lower if you keep your original lower low temp.

I actually tinkered around with my lighting schedule on the weekend and changed the low end temp to be lower before the heater kicks on. I've seen a drop in the low end temp over the last 2 days of 1 degree per day, which as of yesterday helped keep my tank below 80 degrees (79.7!) Yesterday actually to my Apex the temp went from 76.7->79.7.

Either way I'm looking to switch to T5s soon.