Ensure a consistently moist environment for the live moss in your terrarium. Mist the moss regularly, but be cautious not to oversaturate, as excess water can lead to issues like mold growth.

Place your terrarium in a location with indirect light to mimic the natural conditions moss thrives in. Avoid direct sunlight, as it can dry out the moss or create excessive heat.

Maintain good air circulation within the terrarium by occasionally opening the lid or providing small ventilation holes. This helps prevent stagnation and promotes a healthy environment for the moss.

Live moss is sensitive to chemicals and fertilizers. Refrain from using any substances that might harm the moss, and opt for a natural, chemical-free approach to ensure its well-being in the terrarium.