Hoop nets

Has anyone here commercially used hoop nets…im thinking of getting into it and was wondering how many nets and what size hoop? 2ft 2.6ft or 3ft hoops…I would just be using them like a crab pot in a river up here in maryland for perch and catfish and croaker…what would be a good bait for perch…im leaning towards clams…
I have a chance to buy 20 2ft hoops but seems small …thanks for any input

You might want to ask that question on some of the facebook groups for commercial fishing, (this link is for one group, but there are many of them on facebook). I hope it helps.

(Commercial Fishermen of America)