cockroach;2937374; said:Maybe some crays that won't nip at the koi.
wonword;2937301; said:I totally agree that nothing will eat poop. But shrimp, crayfish, and snails help out with left overs. A natural waste grabber is plants. You will need a lot of plants to have a not noticeable amount of waste on the bottom!
Ak-Kronic;2935858; said:yeah no sane creature eats excrement. you can look into a blue crayfish they eat detritus but no poop. do a wc and vacuum your gravel to remove it.