Temperature

Water temperature - controls metabolic rate, oxygen solubility, and disease resistance.

Unit: F or C Code: TEMPERATURE

📊 Ideal Ranges

Freshwater

74-78 F or C

Saltwater

76-80 F or C

Reef

76-80 F or C

📖 Overview

Temperature is the master variable in aquarium biology. Metabolic rate roughly doubles per 10 C rise, meaning warmer fish eat more, breathe faster, and are more susceptible to some diseases. Ich is temperature-triggered; salinity/pH shifts are more dangerous at temperature extremes.