ThrowedToad
Aquarium Advice Freak
My tank sits at 80-82F and it is fine, I would worry if it got any warmer than that though. Keep the fan on it IMO.
try turning down the heater lol
Have you tried blowing a fan across the top of the water?
Those are actually Bangii Cardinals. LFS messed up the names, happens all the time.
The Kaudern's Cardinal, also known as the Banggai Cardinalfish or Longfin Cardinalfish
Saltwater Aquarium Fish for Marine Aquariums: Kaudern's Cardinal - Tank-Bred
I didn't know which name to choose!!