---
title: Test tube moss: a moss in a tube terrarium recipe
description: A medium sealed moss in a tube in a testtube of 0.2 L, with 0 plants and 2 mosses. a corked glass tube on a stand Every layer, plant and moss, and the jar to...
url: https://glassjar.garden/starter-jars/test-tube/
---

Starter jar · medium

# Test tube moss
moss in a tube

medium · Sealed · testtube

A medium sealed moss in a tube in a testtube of 0.2 L, with 0 plants and 2 mosses.

[Open this jar in the simulator](https://glassjar.garden/?starter=test_tube)

## The container

- Glass: testtube, 5 cm across, 18 cm tall, 0.2 L

- Note: a corked glass tube on a stand

- Lid: Sealed

## Layers, bottom to top

- [Aquarium gravel](https://glassjar.garden/guide/soils/aquarium-gravel/), 1.5 cm (0.02 L)
- [ABG mix](https://glassjar.garden/guide/soils/abg-mix/), 2.5 cm (0.03 L)

## Moss

- [Common pocket moss](https://glassjar.garden/guide/moss/fissidens-taxifolius/), about 60% cover
- [Dotted thyme-moss](https://glassjar.garden/guide/moss/rhizomnium-punctatum/), about 25% cover

## Water and light

- Water at build: 7 ml, distilled or rain

- Watering: mist only when no morning condensation

- Light: 2,000 lux, 10 h a day

- Light source: north window

## How to make it

- Pour the layers, bottom to top: Aquarium gravel (1.5 cm), ABG mix (2.5 cm).
- Lay the moss: Common pocket moss over about 60% of the ground, Dotted thyme-moss over about 25% of the ground.
- Water with 7 ml (distilled or rain).
- Close the lid and give it 2,000 lux, 10 h a day: north window.

[Open this jar in the simulator](https://glassjar.garden/?starter=test_tube)

[Pocket jar](https://glassjar.garden/starter-jars/pocket-jar/) · [Cookie jar ferns](https://glassjar.garden/starter-jars/cookie-ferns/) · [All starter jars](https://glassjar.garden/starter-jars/)