Goldfish produce less waste than koi fish. Not sure 100% Next Question Question: Goldfish produce less waste than koi fish. Top Answer (100% of 2 votes): Not sure. Next Question Find Local Pros Free Pond Cleaning Cost Estimates Related Questions How Much Does Pond Maintenance Cost? How Much Does Pond Cleaning Cost? True or False: It is more difficult to regulate the temperature of a shallow koi pond. Top answer: True Are raccoons considered a koi predator?Top answer: Yes How frequently should all of the water in my koi pond re-circulate?Top answer: Every hour Related Topics Pond Installation Pond Cleaning Water Garden Installation