Originally Posted by
cava
That's the right formula but he's being underfed, which may be contributing to his small pees. He should be getting at a minimum, 5% of his body weight every 4 hours so 110 g x .05 = 5.5 ml
Slowly increase at each feeding by half of an ml and watch his poops, sudden or quick increases in the amount you feed may cause loose stool. If that happens, hold steady where you are for a couple of feeding until normal poops then continue to increase. Work on getting him up to 5.5 ml's in the next day or so.
I like to us a slightly damp cotton ball, they flood it when they pee and you can see and feel it.