Those 'keepers' obviously have virtually no education. Also I didn't observe any staff except cashiers and manager/guide.
In previous visits, I have pointed out to the flaws of reptile husbandry, but they made no improvements (even didn't change the signage that presents Nile crocs as caimans!).
Finally, I wrote negative comments in their questbook (which is read by owner at least).
Officially, this is the worst oceanarium in Russia.