Pygmy chams certainly have an attraction for most herp lovers, yes. However, as experienced keepers of many species of chams (including pygmy species), we don't consider them the "first" one to try to anyone.
Even though it is handy that you can keep pygmy chams in an aquarium - we recommend at least a partially screened enclosure.
While some folks recommend veiled, they are often aggressive after they sexually mature, and this often shocks the keeper. If you want a relatively friendly cham, one that isn't too large, and one that you can get a LOT of advice for - try the jackson.
Anything larger than a pygmy - and you will need a screened enclosure - period. Therefore the initial expense for the set-up is more. We will say that the enjoyment is well worth the expense, but you really need to read and search out all the requirements of keeping chams before taking the plunge.
Hope this helps,
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