You dont want huge flaps of skin over the ears that actually means the frogs is overweight. your frog looks fine.calcium and crickets arent that much a month a container of that will do you for a long time and crickets if kept well last for over a month i order them off the internet. I use tetrafauna aqua safe small bottle from a pet store for reps and amphibians and i treat 1 gallon of tap water you add 8-10drops, i use it for frogs water bowl. That might help shedding if you werent treating your water.