Our Premium Disease Free, Pest Free, Live Crickets. You choose the size! Large Crickets are between 3/4" & 1" . Medium Crickets are between 1/2"- 5/8". Small Crickets are between 1/4" and 3/8". Many cricket farmers have tried but few have succeeded in producing a cricket that is as healthy and hearty as ours. We cut no corners when it comes to raising our crickets. If you ordered from other sources in the past, you will appreciate the pristine quality cricket and professional package that gets delivered to you. How long can I keep my crickets alive? The life span of a cricket is 8 to 10 weeks. Your goal should be to order enough crickets to last you for around 1 month. Small Crickets are around 3-4 Weeks old, Medium 5-6 weeks and large are 7-9 weeks old Try ordering more smaller crickets and let them grow into larger ones. You'll find that your trip to Pet Smart to buy 12 cent each crickets will be over!