| Firstly your koi will get caught in the tournament!!!
Secondly the kids in the local area will see the fish and try to catch them, if not steal them for their ponds or tanks (We did a little poaching as children and stocked our neighbours pond)
Some trout farms in the UK are now being changed to carp fisheries and some of the traditional fisherman catch carp on the fly (both floating and sinking). Koi are no different to wild carp other than being a little more visible and a little more suseptable to disease. In fact we have a Koi in our specimen club carp water that is now well over 28lb in weight.
They will live in the muddiest, murkiest of sewage like water and can cope with extreme water parameters if the body of water is large enough and has adequate vegetable filtration which it lookis like it does.
I know a fishery owner that feeds his wild carp in a comercial fishery at the same time every day in the summer, and at the same place. The fish know and congregate there so could be trained which is an out of bound area to the fisherman. But this will make things like poachers and guest fishing easier.
Putting a few fish in the lake might seem a good Idea but the local wildlife will get the better of them as they will be very visible! Only the strongest will survive and they are usually the ugliest dark coloured fish that would normally be culled |