Marshall
Turtle Keeper + CPL(H)
Here are the koi I have in my second pond which is about 5 by 14 feet across but is 2.1 feet deep on one side and slopes down to 6.8 feet deep in the deepest portion with a total of roughly 600 to 700 gallons depending on the water level. I dont know the exact name of the type but my favorite ones are the black one and the black with golden brown colored spots and of course the butterfly koi have always been one I really like alot. (For scale the butterfly koi in center of first picture is about 8 inches long)