closed

Closed Jar

Sealed glass with a stable humid climate — ideal first ecosystem.

A closed jar recycles moisture. Condensation on the glass is normal; persistent fog may mean you watered too much. Perfect for moss, fittonia, and springtails.

When to choose

Choose this when you want a low-watering tropical starter and can accept limited access for pruning.

Ventilation notes

Burp the lid for 10–30 minutes if glass stays opaque for days. Daily light fog that clears is usually fine.

Pros

Stable humidity
Low watering frequency
Excellent for moss and fittonia

Cons

Harder to prune
Overwatering is easy to miss early
Limited plant size

Best for

beginners
moss
tropical foliage
springtails

Not ideal for

succulents
plants that need dry air