Hi, This is my second year with my 500 gallon pond. I live in CT and started with 3 koi and 2 goldfish. The koi were about ten months old last year and the goldfish came from a neighbors pond. I had about 50 goldfish babies survive the winter and I now need to move a few out. How do you suggest I do this without stressing the other fish? The babies are from 3-6 inches in size and are really fast swimmers. Thanks for any help!