<human>:  Would it be impossible to keep an ocean sunfish and a goldfish in the same tank?
<bot>: Yes, it would be impossible to keep an ocean sunfish and a goldfish in the same tank. Goldfish are small and delicate, while ocean sunfish are large and aggressive. Ocean sunfish live in salt water environments. Goldfish live in fresh water environments. Putting a fish into the wrong water type can cause them to die. So, it would be impossible to keep an ocean sunfish and a goldfish together.