Hi all i am new to saltwater reef tanks, and I have a question I own a CORALIFE 32 gal biocube stock reef set up that has three compartments in the back here's the question would there be any benifit to running an air stone in the sump for more oxygenated water in the display tank? and one other question the tank water is around 80 degrees and I have my heater turned off and room temp is steady at 72 degrees, are there any options to get tank water down and to hold around 78 degrees? Thank you in advance