:banana:welcome to garden pond, lots of luck with the new pond. Hope we can help with any ? you might have. I have been a ponder for 17 years. So I have been there done that,both wrong and right.
I have a question. Will we be able to plant water lilies this fall or would we be better off waiting till spring? Also the contractor gave us some references to go and see his work which we did and were impressed. The pond owner offered to sell us some of his extra koi as he said he had too many. Our pond is supposed to be approx, 2500 gallons. How many fish should we start out with? He told us 10 but I don't know, any response would be greatly appreciated
These formulas are for those who don't properly maintain their ponds. they need the margin due to their neglect and poor setup.
My 8 adult Koi and 11 7-8" Koi were just fine for 18 months in 650 gallons before I added a lower pond and doubled the volume. Good filtration and circulation are what is needed, along with monitoring.
Obviously, it is nice to have more, but In 40 years of ponds I have learned to do more with less.