Eddie, the national record CP is 9 lbs. and in many states the record is less than 6 lbs and the average is only 2 or 3. Seems like a good size to put pressure on sm-med fish. The nice thing is that you can always add different fish later if you change your mind.
Good luck with your BSF units, I'm sure you'll enjoy building and operating them. I suppose you know that it's risky to feed the larvae back to animals that made the manure that was fed to the larvae. With 3 units you can avoid that.
I don't have experience processing manure, but I wonder how practical it is, even in a large unit. About the best you can expect is that the BSF will reduce the weight of the manure by half, so when you shovel in 30 lbs you'll have to remove 15. Maybe it's worth it since you use a lot of feed. Also, BSF tend to liquify manure making it harder to move around. Anyway, there's a solution for every problem and I hope you'll let me know how it goes. However it goes I bet you'll find some way to incorporate BSF into your operation.
