Too crowded, expected to see more. Visitors are ru...

Too crowded, expected to see more. Visitors are rude, not waiting turns, pushing others away, not obeying obviously displayed rules (like no flash photography, no touching the fish, ...) and there's not a good crowd control system in place nor any employees around should you need them. You get a 10% discount for the cafeteria when buying a ticket but even then it's obnoxiously expensive and limited choice in snacks (unless you want candy bars).