Its not nutritionally complete for the crickets OR the lizard. Start feeding them dark green leafy veggies and/or some sort of commercial gut load like Flukers Orange Cubes or Cricket Total Bites. The bites will actually turn the inside of your crickets green so you'll know theyve been ingesting them, and once hte good stuff is in the cricket, you know it will get into your cham. The fish food doesnt provide adequate nutrition to allow for the growth of a reptile, espeically if youre using one of the lower quality fish foods, like Tetra Min or Wardleys. In fact, you're lucky that your crix are living, because that stuff is all filler.
hope that helps,
Jamie
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Jamie A. Stine and the Gang:
1.1 Jacksons Chamelions (Ratchet & Clank)
1.0 Veiled Chamelion (George)
1.1 Bearded Dragons (Lancelot & Guenivere)
1.0 Giant Frog Eyed Geckos (Peanut Butter & Jelly)
0.0.1 Albino Pac Man Frog (Hermann)
0.1 Borneo Short Tailed Python (Ezmerelda)
0.1 Red Tailed Boa (Buffy)
1.0 Short Tailed O'possum (Jethro)
1.0 Greyhound (Hank)