oo scary!!! i would soooooo not try to feed my fish insects from a farming area! they are almost guaranteed to have pesticide on them!
pretty much any petstore carrying lizards will have crickets for sale. i'd just go buy some of those. i used to have newts that would only eat a couple of 1/4 inch crickets at a time. easily 50% of the time, when i'd ask for 4 or 5 crickets, i'd *get* 6 to 10 at no extra charge. excess crickets are pretty easy to keep too and you can "gut-load" them if you ever have something special to feed your baby.
again, beautiful finneage.