Yep Granny, it works-
About 30 years ago I tried some aquaculture - there had been testing at the University of Delaware along with other colleges and you could raise a pound of catfish in a gallon of water!
I modified it a bit by raising tilapia which are oral brooders and didn’t have to buy fry (baby fish). The feed conversion was fantastic too. You could raise a pound of fish with 1.1 pounds of feed. My problem with it was that the tilapia were temperature vulnerable and the catfish feed that we were feeding was heavily dependent on menhaden fish meal which made it not so sustainable. Never got too involved in it commercially as I made more money from the fancy guppies I raised and sold on the top of the biofilter.
We have a neighbor who is raising tilapia - he has two houses - total of about $1.4 million invested and produces about 600,000 pounds of fish a year.
I would love to see the fish farm.
Interesting that fish can really be raised in a barrel, I have had them in aquariums and would love to have a few fancy guppies to look at.
Not so sure today were they would fit.
There is or was a market for fish and birds , for I sold many birds to the pet stores.
It was easier for them, to not fight shipping and just pop out to the house and pick them up.