Green Bottle Blue Tarantula 101: Complete Care Sheet

The Green Bottle Blue Tarantula, or, if you want to be scientific about it, the Chromatopelma cyaneopubescens, is one of the most popular tarantulas among hobbyists. It’s known as the Green Bottle Blue Tarantula because of its metallic blue legs and green-blueish carapace.

The spider is very popular, but finding out if this tarantula is right for you requires some information, which I’m here to give you. 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.

Name: Green Bottle Blue, GBB.
Scientific Name: Chromatopelma cyaneopubescens.
New/Old World: New World.
Type: Terrestrial.
Native Location: Paraguaná Peninsula, Venezuela.
Body length: 2.75 inches (7 centimeters).
Leg Span: 6.25 inches (16 centimeters).
Diet: Insects; crickets, grasshoppers, super worms, small roaches.
Lifespan: Males up to 4 years, females up to 14 years.
Beginner Friendly: Yes.
Humidity: 30-50%
Temperature: 70-78 Fahrenheit

About the Green Bottle Blue Tarantula

green bottle blue tarantula

The Green Bottle 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 green bottle 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 tarantulas. Because of their beautiful coloration and high activity levels, they’re very loved among tarantula hobbyists.

Size & Lifespan

The green bottle 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 Green Bottle Blue can live for up to 14 years while a male can only live up to 4 years.

Poison & Venom

These tarantulas are 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 a 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. Just like all New World Tarantulas, the Green Bottle Blue has urticating hairs that they can kick when they feel threatened or disturbed.

Are Green Bottle Blue Tarantulas good for beginners?

The Green Bottle Blue is a fine 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 the green bottle blue is an amazing choice. Unlike some other T’s, this spider is very active and spends 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 tarantula enthusiast and want a T that you can handle and hold, the green bottle blue is not the right choice. They’re quite skittish and can be easily scared. When they get scared they can kick their urticating hairs and will often retreat into their hide.

So, if you’re a beginner tarantula owner and are looking for a T to admire from a distance the Green Bottle Blue is a great choice. If you’re looking for a spider that you can handle and hold, it’s better to look at other spiders such as the Mexican Red-Knee.

Green Bottle Blue Tarantula Care

If you decide that you want to get a Green Bottle Blue 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 these spiders. 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 tarantulas 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 of 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 Green Bottle 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 their 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.

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