online is the way to go i am about to purchase my first 500 pack of crickets, i dont care if i half of them die off or they get to big for my chams, i will have still saved alot of money over my local pet store.
i think its about a dollar for a dozen smalls, my panther eats about 15 smalls a day and the veilded eats about 8-10, plus i have 2 crested geckos that also eat the smalls
http://komodoreptiles.com/
and reptiledepot.com both have cheap crickets
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2 month old veilded chamleon (heinekin)
2 juvie crested geckos (not named)
3 month old ambanja panther chameleon (not named yet)