Draining the pond reduces the area of water and thus reduces the amount needed to effective kill the pond.
What are your goals for this pond?
That's what I figured, re: draining. The pond was completely dry for a month, and I still have minnows. Which sort of tells me that treating a small pool after draining still might not do the trick. UNLESS everything that's going to hatch has hatched, and there's nothing big enough in there now to have spawned and deposited.....
I sure hate to drain because I used quite a bit of bentonite in the reconstruct. I've read it's not good to let it dry out.
The goal is not to have a fish pond, beyond maybe a few diploid grass carp, but an attractive water feature. At a little over a quarter acre surface and 8' at the deepest, it's simply not big enough for game fish when we are not fisher types. Looking after fish is actually a pretty big job.
