finally moved to south florida (hollywood) and good fish stores?

finally got out of former Ukraine and instead of going back to Ohio, ended up in Hollywood Florida.
already love it out here. just need to find a job (am a hospital pharmacist).

so anyway, lots of questions.

where are the cool fish stores?

can i collect wild fish and crabs?

can i keep walking catfish as a pet?

who wants to sell/give a way a fish tank?

thanks

vitaly