Welcome to the forum!!
Sorry... if you are hatching eggs with an incubator I think you know more about turtles than I do. But having said that... think about "in nature". RES ARE native to some areas of the USA... Texas I think is one of them. What do they do when they hatch in nature? Probably head for water within a certain amount of time... could be minutes, hours or days depending on the creature. It's just nature. Think of Sea Turtles... they head straight for water in minutes. What does this species do when they hatch? That will be the answer you need.
Hoping someone else can answer this. If no one answers, pm justatwinturbo as I know he breeds A LOT of turtles. Please come back here and post your answer if you don't get it here. We can all learn something new here!!
Oh ya,... what a little sweetie!! Good luck with "her".
I incubated for a higher temp for a female so for now I say "she", I'll be just as thrilled if it ends up being a male!
I was thinking of what they would do in nature, well, they hatch, which takes a while, just like baby chicks! It's a very tiring situation so they take naps constantly. Then they have to dig out of the ground, depending the area they were laid, how crowded and deep, may take a awhile, but thinking the yolk has to absorb I'd imagine the baby turtles getting substrate stuck in the yolk, for it to close up and cause infection.(wouldn't it?) but I know tons of people who have experience in this but just aren't online to awnser my question!
This is my first time incubating, (and my last, I just wanted one baby from my female) but, I have made up my mind! I'm deciding to keep the baby in the warm moist towel until the plastron closes completely. By the rate it has been going, I suspect tomorrow it will be closed. Then I will add her to actual water!
Thank you for commenting!