Aloha and welcome to the hobby. I still keep freshwater fish too.
Patience is a virtue in this hobby, but there are things that can be and should be done to help the tank mature and avoid the Nitrogen cycle. The N cycle is actually stressful to the tank. See the Reefkeeping Tips thread below for all that and more.
Mark
808-345-1049 call/text/visit anytime
P.S. My tanks are typically at 72 in the morning and can get up to 80 by afternoon in the direct sunshine.