It is important to mention that:

1. you need to be NEAR its face to start the mini game but you don't need to be right in front of his face there is quite a bit of range to it.

2. It's highly advised to stay at some distance to the Shasta as it's collision is kinda screwed. If you are to close to it, it will swimm without care right into you. And if that happens you'll get stuck inside them.

3. Their babies eat exclusively fish meat. And a crazy amount of it at that. 2 of these babies ate 6.000 Fish meat in 2 hours so plan a lot of meat runs if you plan to breed them