Before Starting
Before getting into the details of vivarium construction and design, there are a few points that must be addressed regarding captive animals. Animals, even very tiny ones, require a certain amount of commitment from their keepers in order to maintain a happy and healthy existence. It is very important to thoroughly research any species intended for captivity, well before it is obtained. The species disposition, sensitivity, attitude, habitat requirements, size, lifespan, and diet must be taken into consideration. So often is the case that a tiny snake is purchased from a pet store as an "impulse buy", and later grows into a 15 foot python. The worst part is that most impulse buys end up in tragedy at the expense of the animal because the keeper was not prepared to care for such a species. Again, research should always be done prior to obtaining animals. You may find that a particular species of interest is not for you after all; or you just may find the perfect animal for your budget, schedule, and interest.  

Researching Potential Pets
There are countless resources online for the more common amphibian and reptiles species, and information can always be obtained for even the rarer ones with a little more investigation. Pet stores are not the only option for purchasing amphibians and reptiles, either. There are dozens of breeders of the more common species online, and in most areas in the US. Many larger cities also host reptile and amphibian shows a few times per year, which are excellent public arenas where enthusiasts can meet and exchange information, or even animals.

Locating a Quality Breeder or Store
The fact is that many pet stores stock animals like cleaning supplies; that is, without regard to the fact that they are living, breathing organisms, with specific needs. On top of that, not all pet store owners and clerks even know where the species they stock are from! Let alone, how to care for them in captivity. This is rather alarming when you think about the number of amphibians and reptiles sold on a daily basis to unwitting purchasers.

Captive bred species are always a better choice for keepers, and purchasing captive bred stock also benefits the species itself. The most common reptiles and amphibians are bred regularly in captivity, which reduces the need to capture wild animals, and promotes thriving populations in the wild. Also, captive bred reptiles and amphibians are always healthier than wild caught because they are not exposed to the same pathogens, predators, and pollutants as those in the wild.

Again, there are dozens of breeders of the more common species online, and in most areas in the US. Many larger cities also host reptile and amphibian shows a few times per year. Reptile and amphibian shows are excellent sources for information, as the breeders themselves are usually on hand and willing to assist potential keepers. Such shows are also a prime place to acquire healthy, captive bred animals.

One last note on animals in captivity. In addition to history and captive housing requirements, diet and subsequent care of any animal must always be considered. Some amphibians and reptiles will only accept live foods, which may not be practical for everyone. Many stores sell small amphibians and reptiles that would appear to be care-free, when in fact, they may be a very demanding species. So, size is not always reflective of requirements.