temp too high

I'm in the process of starting my first 28gal Nano JBJ LED. Im almost finished with my cycle but the tank seems to be running hot. My air is set at 75 degrees and the tank is running around 80-81 degrees. I bought a heater but it has been unplugged. Has anyone else had these issues? Moving...

My tank temp stays between 79 and 83 degrees. I was talking to the guy at the LFS about corals and he made a big deal about my temp saying thats too hot for any corals and the temp should be around 75. That would be great if I could get it that low but it wont happen without a chiller. I live in...

i recently added a heater to my tank in order to try and keep the temp at a constant level. the temp used to move from 77 - 80 degrees during the day. when i added the heater and set it at 80, the thing never would cut off and the temp shot up to 84. i completely unplugged the heater to get...

Problem fixed ty :) Next problem: Reef tank where temp is varying from 81-83.5 degrees despite ambient room temp of 76-78. Do I need a chiller? If so, any recommendations on what works well for BC29 with no mods other than bio ball disposal in favor of LR, protein skimming and media basket...