Originally posted by Phil Lilley
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Brachypelma verdezi is apparently a fairly new species (described by Schmidt in 2003) and also fairly uncommon in the hobby at the moment. The Wikipedia page on Brachypelma mentions,"B. verdezi was previously misidentified as non-valid B. pallidum." But, the strange part is that in Dr. Norman I. Platnick's World Spider Catalog: Theraphosidae (the "gold standard" for scientific names among spiders), B. pallidum isn't mentioned at all. In fact, the only mention of the specific epithet pallidum occurs in reference to Aphonopelma (a.k.a., Eurypelma) pallidum, not even the same genus, and as an obsolete name for Brachypelma albiceps. My best guess is that some collector, dealer, or enthusiast created a name out of the clear, blue sky, perhaps melding in their mind the species Aphonopelma pallidum with the genus Brachypelma out of sheer ignorance. Unfortunately, that happens a lot in the hobby.
All the Brachypelma, with nearly all* the Aphonopelma, form the basis for the care regimen we call the "arid species." From the standpoint of their care, there are very few or no differences between the various species because they are all quite easily capable of adjusting to a generic, dry cage, and thriving in the course of doing so. They require no special care or pampering. The members of both genera are about as bulletproof as you can get in a tarantula. Just like making chocolate chip cookies, read the book and follow the recipe.
Now, in specific answer to your question. You might have done better with a species that was a tad more colorful (e.g., B. smithi or B. emilia) because my impression over the years is that people generally prefer day-glow colors in their first tarantula unless the price is obscene. Having said that, you could have done much, Much, MUCH worse for your first tarantula.
You fail to tell us how big your new tarantula is supposed to be, so I'm including here a canned overview of tarantula care. Note that these are NOT specific instructions. You need to read the books to get them. You ARE reading those books, aren't you?
CAVEATS: Note that the following rules of thumb apply to nearly all tarantulas except a few obligate swamp dwellers, and to the arboreal species, and those are addressed towards the bottom.
BABY TARANTULAS: Those younger tarantulas with a diagonal leg span (DLS) of about 1.5" (3.8 cm) or less should be kept in a relatively closed container that heavily restricts ventilation. The substrate should be kept slightly damp. All this maintains a constant, elevated (but not excessive) humidity. Do not mist; instead, reread the last few sentences carefully. Do not spend a lot of time, energy, effort, or money on fancy containers. Like humanoid babies, these will outgrow their containers soon, thereby wasting all your finest efforts over and over again.
SPIDERLINGS TO ADULTS: Those younger tarantulas with a DLS of about 2" (5 cm) and larger should be kept in cages with dry substrate and supplied a water dish with clean water. Keep almost all of these as arid species. (See the exceptions below.)
TWEENS: Those tarantulas between the aforementioned two sizes should be gradually acclimatized to a dry cage over a period of 2 or 3 molts. Gradually allow the container/cage to dry out, but be very sure to supply a water dish with clean water. You're removing the higher humidity and substituting a water dish as the primary water source. In response, the tarantula develops a thicker, more impervious waxy layer to prevent excessive water loss from its body. All it needs is a little time to adjust.
Note that many tarantulas from semi-arid and arid places like the American Great Plains and the Kalahari Desert can make this transition much earlier in life than these recommended times. But, it does them no harm to wait a little longer either.
SWAMP DWELLERS: These are tarantulas like the species of Theraphosa, Ephebopus, Hysterocrates, and a few others. These do not have the impervious, water retentive exoskeletons of the other tarantulas and require a constant, high humidity. Keep these in "baby" style cages for their entire lives, adjusting for increased size of course.
Enthusiasts are discovering that wild caught "swampers" will gradually develop a somewhat greater resistance to slightly drier conditions if the transition is done slowly and over an extended period of time. And, those swampers that are bred in captivity fare much better and can tolerate drier cages much better than their wild caught brethren.
ARBOREALS: Wild caught arboreals, particularly members of the genus Avicularia fare poorly when first brought into captivity (partly because of "shipping shock" and partly because of the sudden change in environmental conditions) unless they are initially set up and cared for as babies for the first few weeks (initial recovery period), then quickly switched to a "Tweens" care regimen (secondary acclimatization period) for the first one or two molts. Thereafter keep them as adult, arid tarantulas but maintain a slightly elevated humidity by slightly restricting ventilation. Always supply them a water dish. (In the middle of the night as they hunt for food they'll pussyfoot down to the water dish and take a sip. And being sound asleep, you'll never, EVER know it happened!)
Captive bred arboreals usually do not suffer the acclimatization problems that the wild caught ones do, but sometimes suffer shipping shock from bad treatment during transportation. When first received they should be kept as babies for the first few weeks, then they can be quickly changed over to their adult quarters and care regimen, skipping the “Tweens” phase.
Enjoy your newfound, little, 8-legged buddy!
* Some of the more tropical species of Aphonopelma are not so resistant to arid conditions as those species from Mexico and the USA. For these species, a little more care must sometimes be taken to maintain a slightly higher humidity. See Relative Humidity... for more information.
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