What Water Temperature Is Too Hot for Tropical Fish?

Wondering about What Water Temperature Is Too Hot for Tropical Fish? Discover expert perspectives with clear explanations.

The ideal range for a freshwater tank with most tropical fish is 77 to 83 degrees. This will make 95 percent of the fish out there very happy. For a saltwater tank, the range is 76 to 82 degrees. For the reef aquarium, slightly cooler, at 76 to 78 degrees, is best.