id drop all that and do stingrays. some motoros, leos, adult retics and top it off with a tiger or 2 and that would look awesome. to bad your in cali though.
id do like big amazon catfish and just start with one and adopt others and give them a good home. im sure theres some people needing to get rid of some pacu.
Tigrinus, P Bass, Armatus. There is alot you could do with 1,000 gallon. Armatus do get rather large. imo you could do it, but they like space. What are dimentions?