Bug developments

I don't think the smaller caterpillar is going to make it.

He's been very sluggish, not eating, and starting to turn pale. He can barely keep himself on the stalk now, and has been falling off regularly. He was the one who'd started to chrysalis, but he changed his mind again and went back to the plants. The other caterpillar, however, is doing wonderfully and hasn't stopped eating.

I don't understand it. There's plenty of food, they're nice and warm, and the cage is always clean.

Maybe all those efforts at forming a chrysalis wiped him out?

I don't know if I should step in and try to help him or let nature take its course and instead focus on taking care of the big guy.

What do you guys think?

-Haz