API Turtle Fix is a safe, all natural remedy that effectively treats topical bacterial infections on the body and limbs of turtles, frogs, and other aquatic/semi-aquatic reptiles and amphibians. It rapidly heals damaged tissue where fungus may grow. Use API Turtle Fix when any of the following become apparent: reddening of the skin, open wounds, damaged tissue, or white, cloudy film on the skin. 4 fl oz treats 236 gallons.