Just adding a little warning to this conversation.
I'm a Floridian, and have collected from all over the state. I also got caught with things I shouldn't have had. If you collect here, please check local and state laws on what you can and can not collect. The law can vary depending on exactly where you are in the state, and they change often. Florida is VERY serious about this stuff. Especially today. The penalty is severe. I no longer collect because of this.
In the early 90's, before the reefs were completely decimated, and before this ranked very high on law enforcement's radar, my wife and I spent a week in the Fl. Keys collecting for our tank. I had a 4x8 utility trailer full of 5 gallon buckets. I had a small 12 volt air pump feeding airstones in each bucket. On A1A headed out of Key Largo, we got pulled over for tented headlight covers. The officer heard the air pump running and asked if we had anything alive. I knew I was busted. The officer didn't know if what I had was legal or not so he called the game warden. He told us that if I had stuff I shouldn't, they would impound our car, my wife and I would go to jail, and our dog would go to the pound. He said we would never get the car or trailer back. For the next 20 minutes, while waiting for the warden, my wife sat on the guard rail, holding our sheltie, crying, and telling me she can't go to jail. That was a very helpless feeling, I pray I never have to repeat.
When the warden showed up and started going through the buckets, he was pulling things out and saying, "You're not aloud to have this, or this, or this.........." I just knew we were going to jail. I honestly believe it was the sight of my wife and our dog sitting on the guard rail in tears, that caused the warden to give us a break. He said, "I'll make a deal with you. We're right here by the ocean. If you help me put this stuff back, I'll write you a ticket for fishing without a license, and let you go." I've never been so happy to get a ticket in my life.
The moral of my little story, if you aren't completely sure of the laws where you are collecting, just look at the stuff, take pictures, have a good time, and leave things as you found it. IMHO, it isn't worth the risk. Especially when we can buy most things you find in our waters, at any LFS, for 10 bucks.
Peace
EC