The water is still pretty murky right now. It was alot better before the rains last week. I have no interest with pond full of them. As of right now theres 4 in there. I walk around the pond every day sometimes several times I like finding them. Still cant het them to eat the 2 different fish foods iv had. I tired dog food also with no luck. Never have got any food just 4 koi so thts prolly the problem. Up til this year if I even got close it would swim away. I'm guessing its somewhere around 18 inches. The 3 we put in there yesterday were prolly 6-8 inches.