Is 84 degrees too hot?

[Justin_18]

Hey everyone,

I Have a nano that is at the end of its cycle and I just replaced my glass thermometer with a digital one. It reads as 84 degrees farenheit. I was just wondering if this is too hot for fish, corals, and invertebrates. Will it be alright as long as it is kept constant or do I need to develop some way to cool the water? Unfortunately, this is not just a matter of turning down the heater. I have a mag 7 pump submersed as the return pump and I believe the pump is generating all the extra heat.

Thanks,

Justin