HELP PLEASE!! pacman feeding problem

[Lija]

Right i didnt noticed the dimensions of the tank

So Carlos had covered husbandry.
Ill do vet part. You will need to do water baths with pedialyte for at least 3-4 days, you need to flush toxins out. You will also need to get reptiboost and use it, you can coat nightcrawlers with it or even crickets if he refuses worms, but just to feed reptiboost, for a food use inly nightcrawlers. They have the best ca/d balance and easy digestible.
See how it is going, you will most likely need to force feed critical care formula, but if he eats nightcrawlers it is not needed. Yet.
Pls update us how it is going, we might suggest different game plan accordingly.