I think high density tanks are great for rapid growth of age-0 and age-1 fish, but the bigger fish slow way down in tank environments.
Probably so.
So far I'm still getting good growth in my RAS though. Many 7 inch bg's in the RAS tank that can't get enough to eat 3 X per day. These fish were the size of the fingernail on my little pinkie 7 months ago. Of course there are some in there that are lagging far behind, which I need to cull out in the next few days.
Bill Cody sent me an article on a guy that grew out a 2 pound bluegill back in the 60's in an indoor swimming pool in his basement. I don't recall how many were in the tank though. He got the fish he raised from a nearby lake in Wisconsin.
Maybe Bill can provide us more details. Bill?
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
