Cage Requirements for a Cobalt Blue Tarantula

This is a quick start reference to give you an idea of a Cobalt Blue Tarantula’s cage requirements. Please use this in addition to other research.

Cobalt Blue Tarantulas are well known for their aggressive behavior and their lightning speed. I strongly suggest you do a lot of research about this tarantula before considering to own one. It is definitely not for a beginner and only very advanced keepers should own this tarantula.

A cage or aquarium that can retain humidity should be used, as Cobalt Blue Tarantulas require high humidity environments. You can use an aquarium and use saran wrap over the screen on top (only part way so you don’t overheat the cage) to retain humidity. Make sure the saran wrap doesn’t get too close to the heat lamp as to cause a fire.

Cage Setup:
A 20 gallon aquarium is sufficient for a Cobalt Blue Tarantula. Peat moss, potting soil, and vermiculite should be used as a substrate 5-6 inches deep as they like to burrow. You can add moss to cover the floor in some areas but don’t completely cover the entire floor so they can burrow as needed.

Basking Temperature:
A temperature of 80-90 degrees is an adequate temperature that you can obtain by using a heat lamp or an under tank heater.

Humidity Requirements:
The Cobalt Blue Tarantula requires high levels of humidity. The humidity levels should be kept at 80 percent. You can mist the cage several times a day with a water sprayer, or purchase a mister to do it for you. A water bowl positioned in a warm area of the cage can also help raise the humidity.

A shallow water dish for drinking is required and also helps with raising the humidity. A water bowl should be available at all times.

You will need to feed your Cobalt Blue Tarantula insects. You will need to make sure that not only your tarantula can’t escape, but you don’t want the insects escaping either.

Make sure you check all your temperatures and humidity levels to make sure they are correct before putting your Cobalt Blue Tarantula in it’s new home.

These tarantulas are known to be escape artists and sometimes hide under the lid to their cage, so be very careful before pulling off that top! Double check to make sure they are not waiting for you on the inner lip of an aquarium. They can squeeze in there and you won’t even see them in the tank.

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