It is a great sight to see the tanks ready on the beach waiting to get loaded on to the dive boat.
This day was for our trip to Gato Island where we got lucky and saw 4 White Tip Sharks.
The next couple of days we dove Monad Shoal, and did not see anything at all

Another guy atthe resort said he went out to that dive spot daily for over 10 days, still without seeing a single manta ray or tresher shark.
I guess it is out of the season here in the middle of May.