For today's feeding, I slightly buried his Selcon-soaked shrimp in the substrate. He instantly sensed food has been added to the tank and detached from his wall, and began swimming around slowly with his tentacles extended. It took him a bit of time time and exploration to find the spot the shrimp was buried - I imagine his sense of smell isn't so accurate in a small tank with good circulation. Within a few minutes he had located the spot. A serpent had already found it as well. Doggy blew the substrate away and took the shrimp away from the serpent, and happily retreated to a corner to feed.
I'll repeat this on Friday and hopefully capture it on video. Knowing my luck, he won't cooperate at all.
Watching Youtube videos of nautiluses feeding in the wild, they usually start jetting away pretty quickly after finding a meal. Doggy seems pretty aware of his surroundings and is cautious in his movements. The only time we ever really see him bumping into the tank walls now is when he is eating, although it is very slow. I have to imagine he has a bit of a one-track mind and gets a bit distracted by his tasty foods.
