Quick update... When I woke up this morning, the first thing I did was walked over to the crab tank, and was SHOCKED to see that they nearly cleaned both bowls! They nave never eaten this well before! It's a nice feeling being able to purchase food and feel like I'm not wasting my money since it doesn't look like I'll have to throw much, if any, uneaten food away. They devoured the shrimp... there's no sign of any remains anywhere. I'm truly amazed. I will be placing another order very, very soon.