If you are going to be seining it to get the FH out, sein it a few times now and get out what is in it. Then stock your FH in and sein it to transfer to other pond. If you do not want the sunfish in your 1 acre pond then get rid of them when you sein. From what I know of HSB, they eat everything that swims. Of course I am a little biased since I am a bass tournament fisherman and I blame alot of poor LMB fisheries on wipers and HSB. If the 1\8 pond is close to the 1 acre pond, won't you have sunfish and minnows in the 1 acre anyways? I may be way off base, but I would think it would be easier and cheaper to leave the pond full and stock your FH. If there are no predator fish in the pond to eat the FH then you should be fine.
