It's probably just poo; short bodied goldies are very prone to this problem.
Give the fish a few days without food, and then try some lightly cooked, deshelled peas; that should help it's digestive system get back in good order.
It's probably just poo; short bodied goldies are very prone to this problem.
Give the fish a few days without food, and then try some lightly cooked, deshelled peas; that should help it's digestive system get back in good order.