They used to have a male and a female. I think the female (Belen) died in 2000. Since then, the male (Kshamenk) is the only Orca, but they do have some bottenose dolphins with him in the pool.
Yes, but Kshamenk does not use that pool, only dolphins are allowed there. As far as I know Mundo Marino tried to put him there because it's the only pool with an underwater viewing, but it's seems that he does not like it. Kshamenk only uses the show pool and one of secundary round pools.
