1. Water turtles, whether deep-water turtles or diving turtles, are carnivores, chasing and biting fish, causing problems such as scales falling off and tail fin damage of ornamental fish, and even death of ornamental fish.
2. All the domestic turtles are shallow-water turtles, and the water depth of ornamental fish is not suitable for raising shallow-water turtles, which is easy to cause turtle lungs to drown and die.