10-15-2005, 03:14 PM
Join Date: Sep 2005
I have about 50 or so goldfish (comets,shubunkins,sarassa,and koi) in my backyard pond. They put out a large amount of waste if you feed heavy. I would recommend water changes. I do water changes of about 300-400 gallon every month. More changes in summer time and less in cooler weather. When the water tempature gets to 50 degrees you have to stop feeding because goldfish metabolism slows way down to the point that if you feed you may kill them. So I don't have to do as much water changes in cool weather - less poop.
Last edited by ElectricHead; 10-15-2005 at 03:28 PM..