Bottle Biosphere Guide -

In the first few weeks of a new bottle, the "New Tank Syndrome" hits. Nutrients spike, light floods the ecosystem, and green slime coats the glass. It is a sign that the biosphere is out of balance. The plants haven't established their root systems; the bacteria haven't colonized the substrate.

Even sealed biospheres occasionally need intervention: Bottle Biosphere Guide

Open systems offer more flexibility:

Provides excellent texture and stays small. Peperomia: Compact choices with sturdy leaves. In the first few weeks of a new

At night, plants (and any micro-fauna) use that oxygen and release cap C cap O sub 2 back into the system. The Water Cycle: The plants haven't established their root systems; the

Place the bottle in (no direct sun—it will cook the plants like a magnifying glass). Over the first week, you will see condensation form on the glass during the day and disappear at night. This is normal.

An unpleasant, sulfurous (rotten egg) smell. Cause: Anaerobic bacteria (no oxygen in the water layer). Fix: This is serious. Open the bottle, aerate for a day, remove any dead material, and reseal with better drainage.