What is the compatibility between goldfish and turtles in a shared aquarium environment?

Goldfish and turtles are not compatible in a shared aquarium environment. Goldfish are sensitive to water quality and turtles can produce waste that can harm the goldfish. Additionally, turtles may try to eat the goldfish or harass them. It is best to keep goldfish and turtles in separate tanks to ensure the well-being of both species.