Waterfall and Aereation

I now have 6 Koi in my pond. On hot days the water gets warm (80 degrees). I have a waterfall running. Will this be enough oxygen for the fish? -Anthony The waterfall should provide enough aeration. Six Koi don't require massive amounts of aeration. It would be a different story if you said that you had 30 or 40 large Koi in your pond. If you are concerned about your Koi not getting enough oxygen, then go to a local Koi supply store or pet shop and get a good sized air pump with some good sized air stones. Hook everything up and put it in your pond. Share: Del.icio.us Digg Reddit