I have been treating my girls to mealworms from www.reptilefood.com for quite a while. I figured I would add some crickets onto my next order, just to see what they think...but they have all sizes. 1/16", 1/8", 1/4", 3/8", 1/2", 2/3", 3/4", 7/8", and 1". Wow, who knew ordering crickets could be so complicated? My oldest girls are 17 weeks and my youngest are 5 weeks. What would be a good size to order?