In Fl if you have a fishing liscense you can collect so much a day in the right places. You can collect most soft corals, most fish, no hard corals, and no liverock. You can get so much a day.
If it is still the same as last year when I checked it is one item per bag, 20 bags per person, per day. no live rock, no hard corals. Other than that if you had a fishing liscense you can use it for harvesting softies and fish.