On 29 October, after a couple of days to recover from the stress, we again ferried Chomper out to the enclosure. He seemed much more relaxed this time, and we fed him and observed his behaviour for several hours. After checking on Chomper again later that same day, we decided to leave him in the enclosure overnight. This proved a success, and Chomper lived in his new lagoon home for 4 full days, during which time we fed and checked on him twice daily.
With only two flippers on the same side of the body, it is physically challenging for him to dive much below the water surface, although initially he did appear to be resting slightly lower in the water (less buoyant). He was feeding well, but didn’t actively come to seek the food when it was presented to him in the water, so we had to place it closer to his mouth.