I think it is great that public aquariums have these things on display. It lets people know what they are getting themselvs into. A lot of people know how big a fish can get, but can't visualize it without seeing it in person. Also, they need to be full size because anything less only supports the idea that "they don't get that big". I think that every public aquarium should have a grown RTC, pacu, silver aro, shovelnose, and irridescent cat. Education is the best prevention.