So I've got a large swamp setup with 3 tentacled snakes in it.

Came home today to one of them above the water entirely, laid out across some branches and pothos. I think this one is the "explorer" of the trio, and is constantly on the move, but never seen anything like this.

I actually thought he was dead, because he looked totally dried up, except his eyes were clear. Never seen one intentionally dry up like this. I began to mess with him with a pair of tongs to sort of do a pokey-inspection and see if I had to remove him from the tank, and he spazzed out and jumped back into the water.

He seems fine now. Did I just observe basking behavior? There used to be a heat lamp in the enclosure but I removed it when I added some small treefrogs to the land area, so I'm thinking maybe he was just looking for a new warm spot. He was kinda chilling in the sun. But with the heat lamp, he always stayed under the driftwood under it in the water.

Anyway, should I be concerned? Was super weird, never seen one above water long enough to dry out like that before.