Just to second what Roger is saying. I have a couple of friends who sell online,local and do the shows and three of them have been visited this month alone. There are more than just one license that they are looking for to sale retail (person to person) there is a license for that, if you are growing it you need a aquaculture license, to sell outside your county there is a license for that. To purchase from an aquaculture you are supposed to have a wholesale license. Not saying they are beating down everyone's door who has a tank but they are cracking down on people who advertise on Facebook, craigslist, and those at the shows. The local shops are blowing the whistle over here. In the last three months the FWC and the county have been to two of my friends to make sure the correct tax I'd and all licenses are up to date. Also side note if you aquaculture you must have a place to evaporate your saltwater you can not dump it. Do what you want with the info take my word or not but I have spoken with FWC now three times twice at my friends and once while I was installing there generator and all depends on the officer who shows up so be nice and have a good idea what you are supposed to be doing.