nehunter, you may wanna look into these net pens. I'm not sure if they'd work or not, but at the price it may be worth a try....
https://duluthfishnets.com/store/assorted-nets/small-mesh-net-pens/BTW, I hope you have the ability to feed them a minimum of twice per day the first couple of weeks. This year I only fed them once per day and I THINK that may have really hurt my survivial and feed training. BTW, I doubt you spend that much on feed. If that doesn't work for you I know a high schooler down here raising them as an FFA project. They'll cost you 2-3$ per 5-6" fish, but save you the trouble.
