Bottle Biosphere Guide Fixed Jun 2026

| Component | Purpose | |-----------|---------| | Clear glass bottle/jar (1–5 L) | Transparency for light; glass holds shape better than plastic | | Gravel or small stones | Drainage layer | | Activated charcoal | Prevents mold & odors | | Potting soil (organic, no fertilizers) | Substrate for plants | | Sphagnum moss | Retains moisture | | Distilled or spring water | Avoids chlorine and chemicals | | Aquatic plants: Elodea , Java moss , Duckweed | Oxygen production | | Land plants: Fittonia , Selaginella , small ferns | Low-light, high-humidity species | | Small animals (optional): Ramshorn snails , Opae'ula shrimp , springtails | Algae control, decomposition | | Cork or rubber stopper + sealant | Airtight closure |

High-quality potting soil or a specialized terrarium mix. Plants: Small, slow-growing plants that love humidity. Bottle Biosphere Guide

Once your biosphere is sealed, place it in Never place it in direct sun, as the glass will act like a magnifying glass and "cook" your plants. Common Issues: | Component | Purpose | |-----------|---------| | Clear