LOL! I just read one of your tags - DH always accuses me of taking so long to food shop, as a way to hide from my kids!
Anyway - we had a 1pm ADR for lunch, and saw them feed the fish about a half hour into our lunch. It's really interesting, but none of my pictures came out. The restaurant is pretty dark, and when my flash went off, it just bounced off the glass of the aquarium.
So just sit back and enjoy. Don't worry about taking pictures!