Add 1–2 small snails ( Planorbella or Physa ) and 5–10 Daphnia .
Tap water can cause mineral buildup on the glass. 3. Best Plants for Your Biosphere Bottle Biosphere Guide
Nerve plants ( Fittonia ), Polka Dot plants ( Hypoestes ), and Pilea glauca . Vines: Creeping Fig ( Ficus pumila ). Add 1–2 small snails ( Planorbella or Physa