Bottle Biosphere Guide Full Guide

Close the lid securely. Place the jar in bright, indirect light—east-facing windowsill or 2 feet from a south window. Direct sunlight will cook the biosphere like a greenhouse.

Cut a circle of mesh screen or a coffee filter slightly larger than the jar’s diameter. Press it down over the charcoal. This prevents soil from clogging the drainage layer. bottle biosphere guide full

The longest-known sealed bottle biosphere was created by David Latimer in England in 1960. He sealed a bottle garden with a single spiderwort plant and opened it only once in 1972 to add water. As of 2025, it is still thriving—over 65 years. Your goal is not perfection; it is stability. Close the lid securely

Choose slow-growing, humidity-loving, low-light tolerant species. Examples: Cut a circle of mesh screen or a

Use marine salt (1.020–1.024 SG), Chaetomorpha algae, brine shrimp, and a small piece of live rock. Requires stronger light.

Using a soft brush or a piece of cork, tap 10–15 springtails onto the soil and moss. They will vanish into the substrate immediately. Do not worry if you do not see them for weeks—they are working.