neither worms nor BSF larva are going to be a complete feed for fish. BSF don't survive year round in New Hampshire. I think you need to be warmer than zone 7 to have them return each year and would need to keep the bin warm through winter to overwinter them. I'm in FL and they usually vanish for about 3 months of the year on me. I think Growing Power has started experimenting with keeping them going in a heated greenhouse through winter but I haven't heard the results.

If you are feeding rabbit manure to your worm bins, then feeding your worms to the aquaponics system, you are running the risk of introducing e. coli and salmonella into your system. I would recommend that worms and BSF being fed to fish should be coming from a bin that has not gotten fresh warm blooded manure for at least 4 months or an alternative might be to purge the worms by putting them in a clean moist bed of cornmeal for a period of time before feeding them to the fish.

I'm not fecophobic but I eat lots of raw food out of my aquaponic system and I therefore prefer not to be sprinkling my aquaponic water with fresh manure since that would be a bit like sprinkling my salad with fresh manure.

Properly composted manure is a different story but that takes time.