Never fails ... some landlocked so & so with attitude has to step up on their soapbox.
I have a 55 gallon tank that is very well maintained. EVERYTHING ... with the exception of the sheet of colorful plant background taped to the back of the tank IS the environment they came from. (tankmates,rocks,plants,driftwood....and so on)
AND YOU ARE WRONG
I do NOT do this for commercial use. It is "PERSONAL". No permits required unless they are game fish or there is a size limit when caught on a pole, endangered species .... and so on.
Where do you think the LFS get their fish???? Not all are bred in captivity,especially the exotics. Do you realize how many of your land locked petstore fish die on the way to them just to bring YOU the pleasure of having them in your tank? What do you think you do when you "buy" a piece of live rock? Those critters come from somewhere.
Let me add this is a natural flats tank, not a reef tank loaded with exotics. We have things like serpent stars, sand dollars, marble blennys, greenbacks, spider crab, hermit crab, pistol shrimp, flounder ....
As a responsible aquarium owner ... I do know the regulations when collecting from our flats!
Next time I need information, I'll just buy a book ....
Don't worry ... if they die I'll just use'em as bait!