So it wouldn't be necessary to mix lab blocks with small animal blend (grains, seeds, nuts, etc.) . I have been mixing the small animal blend with lab blocks as well as dry dog food and dog biscuits as treats. All of my breeder animals are healthy on this diet, i was just curious as to why the reptile stores i go to feed only lab blocks and why the full-line pet stores that i go to only feed the normal small animal blend.