If you're keeping large amount of insects or need them to stay alive for any amount of time; you want to avoid feeding the crickets a diet that is too high in calcium. They tend to favor foods with a greater phosphorus ratio; and I've found molting problems and premature death in cricket and roach colonies when fed excessive calcium in the diet.

Definitely still dust your bugs with the supplement on the regime thats appropriate for the species and age of the animal; regardless of what you do to the gutload.