ARACHNOsys - Acrylic enclosures for invertebrates

ARACHNOsys offers groundbreaking acrylic enclosures for invertebrates with unique registered designs and unprecedented features. Our products are suitable for a wide range of arboreal, terrestrial and fossorial living animals, including tarantulas, scorpions, jumping spiders, true spiders and millipedes.

The ARACHNOsys enclosure configurator!

Build your own individual enclosure! The standard enclosures don't fit in your shelf? You would like your enclosure to be deeper than wide? As of now you can configure your ARBOREA, TERRESTRIA, TERRESTRIA-SL or FOSSORIA at your convenience, and we will manufacture it for you!


Two enclosures of our ARBOREA series: The ARBOREA-SD XS and XXS



Two models of the TERRESTRIA series:

The features which make our enclosures unique:


Maximum transparency

Our ambition was to eliminate everything nontransparent. A clear frameless design. No round aluminium or plastic elements with mesh insert, in fact no mesh at all, no perforated aluminium sheets, no hinges, no silicon joints, no plastic knobs or handles, no black U-shaped rails, no black plastic parts at all. Nothing that interferes the view into the enclosure. Nothing that distracts from the main point: What’s inside the enclosure.


In our enclosures designed for tarantulas we do not use any mesh. The two claws at the end of each of the spider’s legs can easily get stuck in the mesh, causing danger to the animal if not discovered in time. All ventilation holes are laser-cut and therefore save for tarantulas.
We do not use guillotine doors, since they either require to be held open with one hand or to be removed completely when opening the enclosure. In addition, they need unattractive black U-shaped rails. Those rails are also needed for sliding doors, which due to the horizontal arrangement become soiled easily and then get difficult to open or create annoying noises while being opened.


Why acrylic isn't enough

Most parts of our enclosures are made of acrylic glass. The reasons are simple: A terrarium made of acrylic glass is just 50% of the weight of a glass terrarium of the same size. Especially for people who carry their enclosures for feeding or maintenance, this is a huge advantage. In addition, acrylic glass can be laser-cut in any thinkable shape, which allows more flexibility in design, and for instance no need to use mesh or perforated aluminium sheets for ventilation. All ventilation holes in our enclosures are laser-cut.

However, movable parts like the doors can warp if they are made of acrylic glass. This happens especially if there is high humidity inside the enclosure and dry air  outside. Deformed acrylic doors do not only look poor, but can also cause problems when opening or closing them. That is the reason why we decided to introduce a second material especially for the doors of our enclosures: Polycarbonat.

Enclosure door polycarbonat

Polycarbonat doesn’t absorb any water and therefore doesn’t warp, no matter how humid the environment is. It’s highly durable and virtually unbreakable (for instance it’s used for motorcycle helmet visors), which in our opinion makes it the best material for the doors. It also allows us to get rid of those plastic hinges which tend to make annoying squeaking noises while opening or closing the doors.

Cross Ventilation

No stagnant air allowed

When it comes to ventilation, especially with the subfamily Aviculariinae, cross ventilation is the key to successful husbandry. Our enclosures provide two or four areas of laser-cut ventilation holes in the side parts, providing excellent cross ventilation.

Enclosure Cross Ventilation




Build your wall of enclosures

Stacked Enclosures

The silicon feet are high enough to place an LED lighting between the enclosures (not included).

Enclosure LED lighting


The lock

And what else it is good for

The doors can be opened and closed by simply turning the lock. Either the handle on the rotation cover or the hole in the door can be used as a door handle.

When the door is closed the lock covers the hole:

Enclosure lock

In case the lock isn’t turned until the limit stop, the door cannot be opened, however, the hole can be used to put food items, spray the enclosure or do other maintenance work without the need to open the entire door. This significantly reduces disturbance of your tarantula and the chance it will bolt out of its enclosure:

Enclosure lock

In case the lock is turned until the limit stop, the door can be opened:

Enclosure lock

The hole in the door can also be used to transfer an arboreal spider from a catch cup into the enclosure:

Enclosure Catch Cup

A locking nut provides the possibility to adjust the tension of the locking mechanism to suit:

Adjusting the enclosure door lock


Refilling the water dishes

Tiny details which make life easier

Every door has two small slotted holes which can be used to refill a water dish with a spray or wash bottle without the need to open the door. This is convenient, saves time, and avoids an unnecessary disturbance of your animal.

Refilling the water dish