Thanks, all. Guess I'll wait until our spring rains are pretty much over before I tackle koi removal, just in case they aren't the mudders. I don't think the problem is the ducks or geese--we have just one pair of geese and probably a pair of mallards.

But these koi have none of the beautiful patterning for which koi are bred. These are muddy-white, submarine-shaped, and not pretty at all.

How do koi taste?

Thanks again.