I was thinking about a few handfuls of sand. Nothing more than you shake out of your gear when you get home.
But I bought some live Carribean, so that's out of the questions now.
As a group, we might want to research the exact laws on these things. Different beaches might have different laws. Perhaps small amounts are okay, while harvesting for sale is not . . . .
I'm guessing there's no rules on macroalgae, 'cause who would want it?
Does caulerpa grow here?
Shells for your hermit crabs? That seems okay.
If you have a fishing liscence, this might allow you to take certain animals legally . .. . feeder fish?
You might say what's the point, but if you're vacation down there this summer and you come across something interesting, it would be good to know exactly what is permitted, right?
A tiny tank with stuff collected from the Jersey Shore is not unimaginable, this hobby is getting very popular. . ..