: Allow players to collect "abiotic" components (rocks, toys) and "living" components (moss, algae) to decorate and maintain their virtual bottle. Android-Optimized UI
Small pebbles, gravel, or leca (clay pebbles). Bottle Biosphere Guide
| Category | Item | Notes | | :--- | :--- | :--- | | | 1-2 liter clear glass bottle or jar | A wide mouth (e.g., pasta sauce jar) is easiest. A carboy (fermentation bottle) looks impressive but requires long tweezers. | | Drainage | Small pebbles or gravel | Washed thoroughly. | | Filtration | Activated charcoal | Crucial. Prevents mold and removes toxins. Available at pet stores (aquarium section). | | Barrier | Window screen mesh or moss | Keeps soil from sinking into the gravel. | | Growing Medium | Potting soil | Use sterile, organic potting mix (no chemical fertilizers or perlite—perlite floats and looks ugly). | | Plants | Small, slow-growing, humidity-loving plants | See list below. | | Water | Distilled or rainwater | Tap water contains chlorine and minerals that build up. | | Tools | Chopsticks, tweezers, small funnel | For arranging inside narrow necks. | | Cleanup Crew | Springtails (optional) | Tiny bugs that eat mold. The single best insurance policy for a healthy biosphere. | : Allow players to collect "abiotic" components (rocks,
Inside the glass, a tiny version of Earth’s water and nutrient cycles takes place: A carboy (fermentation bottle) looks impressive but requires
He began with the foundation, layering coarse gravel for drainage and activated charcoal to keep the tiny world from souring. Next came the rich, damp earth, which he sculpted into a miniature valley. With a long-handled dowel, Elias carefully poked a hole deep enough for the roots of a delicate fern. He nudged the plant through the narrow neck of the bottle, tucking the soil around its stem like a blanket.