I have a koi carp in my outdoor pond that has become extremely bulbous around its girth?

Anne T asked: All other fish in pond are in good health. Various species. The koi also looks healthy apart from its girth.

How many koi and comets can you put in an outdoor pond of about 1500 gallons?

FishMan asked: My uncle has a 1500 gallon pond and has 6 comets and 3 koi in it and a bunch of really small fry. Is this overstocked?

I am also planning to give him 1 koi and 2 comets because I don’t have enough tank space to keep them in, if it is alright.Content supplied [...]