Ive posted this before, a tip I learned from Mitch. For a nice fatty food (use sparingly), Maggots!! Make a smaller then normal fruit fly culture, dont add coffee filter or excelsior. In a few days the cup will be covered in maggots. Scrape off maggots with a flat stick (popsicle is my fav), pinch o' vitamin dust, add to viv in a film canister cap. BAM! McMaggot with cheese. Your frogs will be as fat as americas youth.