Biosphere Guide | Bottle

A sterile, lightweight potting soil mixed with perlite or orchid bark. Avoid standard garden soil, which packs too tightly and harbors harmful pests. 3. The Cleanup Crew (Optional but Recommended)

To build the biosphere, layer the drainage, charcoal, and soil, then gently nestle the plants into the earth. Add a small amount of "source water"—ideally rainwater or water from a natural pond—to introduce beneficial microorganisms.

Excellent climbing or trailing vine; fills empty wall space. Background/Sides

and water into energy, releasing oxygen. At night, they consume oxygen and release CO2cap C cap O sub 2 Bottle Biosphere Guide

You may see plants die and decompose. This is part of the nutrient cycle. Troubleshooting Mold Growing Too much moisture, too little airflow

A bottle biosphere is an ecosystem sealed within a glass container. It works because it mimics the natural processes of Earth, creating its own , nutrient cycle , and oxygen-carbon dioxide exchange .

If no condensation forms at all, add a few teaspoons of distilled water and reseal. Always use distilled or rainwater; tap water leaves mineral streaks on the glass. Lighting and Location A sterile, lightweight potting soil mixed with perlite

: Avoid tinted glass, which blocks essential light wavelengths. 2. The Substrate Layers

Add 2 to 3 inches of moist terrarium soil. Create slopes or hills to add visual depth.

Any clear glass container works, provided it has a tight-fitting lid or cork. Popular choices include large mason jars, vintage carboys, demijohns, or clean laboratory flasks. Avoid colored or heavily frosted glass, as it blocks the light wavelengths plants need for photosynthesis. 2. The Drainage Layers The Cleanup Crew (Optional but Recommended) To build

Add a layer of nutrient-rich potting soil. Some guides suggest adding a thin layer of charcoal to keep the water fresh.

Add a 1-inch layer of gravel or sand to the bottom.