alright awesome, he needs the most nutrition he can get.
http://www.bmldiet.com/bml-recipe.html
Ok This recipe is for adult gliders, I'm going to need to you to pay attention carefully to MY instructions
not the recipe instructions. Normally we don't suggest modifying diet recipes, this modification is done by the diet creator herself specifically for hand feeding joeys.
The recipe needs modified for young babies,
you HAVE to leave out the
wheat germ. It can produce to much gas for a young joey like yours.
You CAN make two separate batches, one batch with the wheat germ for your adult gliders, which will help mom and provide more of what she needs to keep nursing the bigger joey. All your other gliders would benefit from Bml.
And the second batch WITHOUT the wheatgerm for the lil guy your hand feeding. Once his batch is made, you can water it down a little before each feeding.
But make sure you label which is the joeys and which is the adults so you don't get them mixed up.
All the ingredients can be found at your local grocery store and pet store, just measure everything (minus the wheatgerm ) dump it in a blender and blend the crap out of it.
What are you using to feed the joey?? like needless syringe?