Species not in zoos that we'd want to see in zoos

What bigger sharks breed in aquariums and in what numbers?

And what about other "big fish" like saltwater rays, sawfish and groupers?

 

I only have some figures of several years back and would have to look them up.
sandtigers and lemons are a few of the biggest that reproduce from time to time.

regarding rays: the bottomdwellers generally breed easier than active species such as eagle ray and cownose.

if I find that list, I'll post it here

 

Take a look at: http://www.zoobeat.com/2/shark-husbandry-17572/

 

Thanks for the reply Zebraduiker, I'm still with you I'd like to see more rare antelope in captivity