Sorry to hear about your frog not doing too well. I think you are having this problem because the frog isnmt getting enough vitamins and minerals. You should do some research about it on your own because some of it is kind of complicated, but itms not too hard to find a schedule that works for you.

You will need to purchase some powders from the pet store, one will be called calcium with d-three, which you will need to use every other night. On those nights, you should alternate with regular calcium with no d-three, because too much can be as bad as too little.

You'll also need to get some multivitamin powder from the same place, which will be something you use once a week, but not on a night with any other powders.

My frog Bubba once became very sick and weak, and lost the use of her front legs entirely. she could barely move. I got the proper powders and within a day or two she was back to normal. Now, many months later, she is as sturdy as a brick house and as muscular as a pro wrestler. She's healthy and happy and I owe it all to the advice from this forum. Hope you can turn the little guy's health around.

By the way, I am not an expert so you may wish to wait for some more knowledgable folks. Good luck!