Mini Round House – A Tubs and Tubes Setup


The Mini Round House is a plug-n-play outworld with a port for the test tube. It’s very cute and doesn’t take up much space.

Product Description

This is perfect for founding colonies that are not quite ready to move into a nest but need the extra space for feedings and cleanliness. Having a round outworld minimizes wasted space and the test tube provides a sustainable watering system.


  • Mini Round House – the Outworld – a 2×2 cylindrical container with a layer of gypsum cement and a mesh breathing hole in the lid
  • A 20mm test tube that plugs into a port on the Mini Round House


The ants get their water from the test tube.


What’s a “Tub and Tubes Setup”?

  • It’s a test tube and an outworld, used by entomologists and ant keepers who raise ant colonies.

Can I use my own test tube?

  • If it’s 20mm in diameter you can see if it will fit. The tube we provide fits very snugly into the port. The internal diameter varies between test tube manufacturers and even within different batches from the same company. We recommend checking the addons box for 3-extra test tubes if you think you will need more.

What do I put into the test tube?

  • Cotton stuffed into water which creates a humid environment for the ants. We recommend researching “test tube setup” to see a video on how to make one.

How do I get my colony to move in?

  • We prefer the tap-tap and dump method of introducing the ants to their new home. They will quickly discover the attached test tube and will move in when they are ready.

How do I apply heat?

  • We recommend placing a heat cable over the tube.

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