Greenbottle Blue Tarantula 101: Complete Care Sheet

The Greenbottle Blue Tarantula, or, if you want to be scientific about it, the Chromatopelma cyaneopubescens, is one of the most popular tarantula species among hobbyists. It gets its name due to its metallic blue legs and green-blueish carapace, giving this spider a unique and highly desired appearance.

The GBB is very popular, but finding out if this tarantula is right for you requires some information, which I’m here to provide you with. I will go over everything you need to know about this spider, ranging from their behavior to the care they require. We’ve got a lot to cover, so let’s dig in!

Care Sheet

Let’s begin with a quick care sheet. This sheet will give you some of the most important information at a glance.

NameGreenbottle Blue Tarantula (GBB)
Scientific nameChromatopelma cyaneopubescens
New or old world?New World
Native locationParaguaná Peninsula, Venezuela.
Body length2.75 inches (7 centimeters).
Leg span6.25 inches (16 centimeters).
DietInsects; crickets, grasshoppers, super worms, small roaches.
LifespanMales up to 4 years, females up to 14 years.
Ideal humidity30-50%
Ideal temperature70-78 Fahrenheit

About the Greenbottle Blue Tarantula

green bottle blue tarantula

The Greenbottle Blue tarantula is native to Venezuela. More specifically, they’re from the Paraguaná Peninsula. The peninsula has a desert climate, so these are desert tarantulas. They were first described in 1907 by the Norwegian arachnologist Embrik Strand.

Throughout the tarantula’s history, it’s been moved from genus to genus. In 1939 the spider was moved to the newly created Delopelma genus and in 1997 it was moved again to the Chromatopelma genus.

The greenbottle blue tarantula is a fast spider with a blue-green carapace and metallic blue legs. In addition, they’re also quite active compared to most other species. Because of their beautiful coloration and high activity levels, they’re very loved among hobbyists.

Size & Lifespan

snakecollecor, CC BY 2.0, via Wikimedia Commons

The greenbottle blue grows quite fast and fully grown it’s considered a medium-sized tarantula. Their fully grown body length is about 2.75 inches while their leg span is around 4 to 6.25 inches.

Females of this species live much longer than males. A healthy female can live for up to 14 years while a male can only live up to 4 years.

Poison & Venom

GreenBottle Blues are typically not very aggressive and do not have a tendency to bite. If you do get bitten, it’s not a huge deal. They do have venom, but this will cause slight irritation at worst and is not threatening to humans.

Rather than their venom, you should be more worried about their urticating hairs. Like all New World Species, this tarantula has urticating hairs that they can kick when they feel threatened or disturbed.

Are Greenbottle Blue Tarantulas good for beginners?

The Greenbottle Blue is okay as a species for beginners but whether it’s right for you depends on what you want to get out of owning a pet tarantula. If you just want to look at it, then this species is an amazing choice. Unlike some other species, they’re very active and spend a lot of time roaming around their enclosure. They spend a lot of their time out in the open giving you ample time to observe them.

However, if you’re a beginner enthusiast and want one that you can handle and hold, they might not be the ideal choice. They’re quite skittish and can be easily scared. When they get scared they can kick their urticating hairs, which can be very painful, and they will often retreat into their hide.

So, if you’re a beginner and are looking for a tarantula to admire from a distance the Greenbottle Blue is a great choice. If you’re looking for a spider that you can handle and hold, it’s better to consider other tarantulas such as the Mexican Red-Knee.

Greenbottle Blue Tarantula Care

If you decide that this is the right tarantula species for you, then you need to know how to properly care for them. That includes giving them the right enclosure, the right food, the optimal humidity, and the optimal temperature.


A simple terrestrial cage will suffice for the Greenbottle Blue. It is important that their enclosure has enough ventilation. A plastic critter keeper-style terrarium will work just fine. Their tank should be 5 to 10 gallons. The amount of floor space in their enclosure is more important than the height.


These spiders need a dry substrate. Some suggestions for the substrate are:

  • Commercial organic cactus soil mix
  • 50/50 sphagnum peat moss/vermiculite mix

It is recommended to put a layer of substrate about 4 inches thick into the enclosure.


While this particular spider tends to spend a lot of time out in the open it still does need a hide. You can place a piece of bark in the enclosure as a starter retreat. However, the GBB is an avid webber and will most likely create its own retreat from webs.


The Greenbottle Blue is a desert spider and for that reason, they thrive in low humidity. They need between 30 and 50% relative humidity in their enclosure. Checking the humidity in their enclosure can be done easily through the use of a hygrometer.

Achieving low humidity can be hard or difficult, depending on where you live. If you live in a place where there’s naturally low humidity then consider yourself lucky because you might not have to worry about humidity at all.

If you live in a humid climate it can be quite tricky to get the humidity low enough to accommodate this desert spider. Make sure that there is proper ventilation and do not mist their cage too often.


A temperature of 70 to 78 degrees Fahrenheit is recommended for this spider. If you live in a cold climate it might be necessary to use a heating pad or lamp to ensure that its enclosure reaches the desired temperature.


This tarantula is quite skittish, fast, and can easily be startled. For that reason, it’s not recommended that you handle them at all. They’re much better observed from a distance rather than directly handled.

If you do decide to handle them, be very careful. They’re not considered to be very defensive, meaning they usually won’t bite when they’re startled, but they can shoot their urticating hairs at you. Also, they might run off your hand and fall on the floor. Even relatively small falls can do serious damage to a tarantula.


These spiders mainly eat insects. Good insects to feed them are crickets, grasshoppers, super worms, and small roaches. When the GBB is in pre-molt, it will not eat. This is a common behavior among all tarantulas and is nothing to worry about. To learn more about the molting process, check out this molting guide.

Feeding should happen at night/in the evening because just like other tarantulas, the GBB is nocturnal.

Jesse A.