I have a small in greenhouse pond with a red-headed slider and 3 goldfish. The turle is about 20 years old and
the goldfish have been his companions for the last about 15 years. No he has never bothered to eat them - I think he's too chubby and slow but also think his eye sight isn't the best.
My problem: over the last year, all 3 fish have grown tumors all over their bodies and died, the last one today.
My question: If I clean the filter so getting rid of any lingering problems, do you think I can add more fish? Or is the turtle giving them some disease that's taken all these years to manifest itself? Or maybe.... ? There was a tiny-sized snail infestation but between the fish and the filter, I think they're gone.
