The electrolyte replacement would be great.

Reptaboost is sold at any pet store in the retile section.

Pedialyte is sold in any grocery store or department store like Walmart or Kmart. You can find in the baby section of the store or in the pharmacy area. Though if you use the electrolyze that you listed, you might not need pedialyte. I'd have to read the ingredients to be sure.

That liquid calcium looks fine. Check to see if the electrolyze has calcium in it also. I bet it does.