A good friend of ours (who helps with the MAX show) is a Los Angeles County Superior Court Judge.
They once had a "California Cold Tank" full of rock anemones, hermit crabs, etc. that they had collected during their strolls along the P.V. peninsula
I'm thinking that you'll be fine.
The real challenge is keeping the water temp around 70 degrees or less. Small tank + big chiller is likely mandatory equipment