When I started my tank everything came from the sea. The rocks, coral (which was dead at that time)
Barnacles, fish, crabs, shrimp, horseshoe crabs, urchins and anything I could find that was alive and small enough I put in my tank.
The water I still collect in the sea and of course amphipods.
I once had an urchin collection business where I would SCUBA for urchins. I went to the environmental protection agency for an urchin collection permit and they said to me,
"Whats an urchin"? so I figured I didn't need a permit.
<----------------<<<< My avitar is a local New York hermit crab that was about half an inch long. Very common at one time here but not any more. I took that picture at night on a lobster dive.
This guy.
These guys and dozens of pipefish and seahorses.
@Paul B you are a true true Trailblazer..... Keep on going on!