A hide for an injured frog is always a good idea. Feeling protected will help reduce his stress which will help him heal. I'm sorry, I'm so close to the city and have probably 5 pet stores in a 10 minute drive, I forget that not everyone has that convenience! I have always used whatever fruits and veggies I have, they eat just about any of them. I usually always keep an orange wedge in with them, that helps to hydrate them as well as give your frogs vit c Eating is good, hopefully he starts healing now.