You can, but this is something probably reserved for experienced keepers and breeders.
Unless you know what stress signs you are looking for, and can monitor your chameleons directly for most of your time. While providing adequate coverage and seperate basking areas. Honestly, this should be reserved to people with experience, even then people usually keep their chameleons separate. Chameleons are solitary by nature and prefer to be alone. Plus are you prepared for female egglaying and breeding in general? Breeding is a big financial step to take, and something you shouldn't take on with the responsibility of researching for your first chameleon.
Chameleons are senstitive to stress, supplementation, lighting, etc. Taking the time to research now from a reliable resource will save you vet bills later on.
A few tips:
-Pet stores/shops offer horrible advice. They set you up with the wrong equipment, give you useless if not dangerous crap like waterfalls, and wrong lighting.
-Most of their animals are wild caught. They are more succeptable to problems and should be checked for parasites. But then again, any chameleon you get should be checked for parasites.
-That or the animals are from backyard breeders around town, and are usually sick from the breeder or the store to begin with, leaving you with the costs and repercussions.
- A veiled or panther chameleon is much better to start off with. A healthy animal is pretty much guaranteed if you take the time to find a breeder. There are plenty on this site.
I am not saying this to discourage you, but I just want you to have a good first time experience with chameleons.
http://raisingkittytheveiledchameleon.blogspot.com/
This is a good resource to start with, I don't have any for flapnecks, but I am sure someone will.
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