So One of my Eastern Black necks is eating like a pig and growing nicely, the other is still refusing food.

I have been putting him in a deli cup with a guppy and a tiny bit of water and leaving him there for a few hours (this is how I convinced his sister to start feeding on guppies). Every time so far, he doesn't eat so I put the whole deli cup in their enclosure, take off the lid and he crawls out while his sister heads over and eats his guppy.

My original intention was not to brumate either of them this year as they were born late (October) and I would rather encourage their growth by keeping them warm and well fed this season.

My question is: At some point of his continuing to refuse to eat, would it make sense to give him a short brumation keeping in mind that he has not eaten more then 2 or three times in his life (all with the breeder) and is a very tiny fellow.