i would stock with fathead minnows as soon as water conditions allow. then i would find someone with a bluegill heavy pond and try to get 100 percent males. i wish you were closer to me. i would love to cull some of my bluegill. you might grow a record fish in that little pond. if you had a 150 or so in there, it could still be fun for the youngster to fish in.
about compaction- my first pond was built with an excavator and dozer only. it never leaked a drop. it had really good clay. my second pond was built with large pans, off road dump trucks, etc and it leaks. i would feel sure that with that size pond it could be treated with soil floc and you would be fine. it really helped my leak. i bet you will be fine.. it looks great!!!
