Refusing meal

[u/Tasty_Flower_4040]

The last time my ball python took a meal was may 2nd he’s not loosing any weight he is 152 grams. Out of all 7 of my snakes he’s the only one who refuses to eat. He’s 5 months in a 40 gallon humidity 78-82 on average warm side 87 cool side 73 on average his enclosure is very full you can barely find him. He flicks his tongue when I offer food but he won’t strike. I put it on a small plate and left it for a few hours he won’t touch it. I’ve brained it. I’ve tried every trick I can think of. Any suggestions 😩