This brings up a question for me that I've never thought to ask before... Can frogs smell??

I have a cat who has been blind since he was a kitten, and finds his food no problem by smell and memory. I don't think that would be as easy for a frog. I do think the tong feeding idea is spot on though, once he realizes you're giving him/her food, it will have no problem eating.

Congrats on your new baby and good for you taking on a special needs pet