I am new to baby squirrels. No rehabbers in the area to assist. Joey appears to be approximately 6 wks old from information on the internet. He has been eating Esbilac puppy milk replacer. 3.5ml to 5 ml 4 times per day. I gave him pedialyte at first with the formula because he was dehydrated.
He was 55 grams when my neighbor found him and is now 68 grams. I've had him 1 week.

What do I feed him next?

Thank you.