To maintain your terrarium and ensure its longevity, it is important to follow these key steps:

1. Light: Place your terrarium in a location with indirect sunlight or in a dark room. Avoid placing it in direct sunlight, as this can cause the plants to "burn". Use a LED lamp to light up your terrarium as its source of energy. Turn on your lamp on for 6-8 hours per day for optimal results

2. Watering: Monitor the moisture level in your terrarium. Water sparingly, only when the soil appears dry. Overwatering can lead to root rot and other issues. Do not wipe off the water buildup on the glass walls as it will flow back into the ground. 

3. Ventilation: While terrariums are enclosed ecosystems, it is important to provide some ventilation by occasionally opening the lid or removing it for a short period to prevent mold and excess moisture buildup.

4. Pruning: Trim any dead or overgrown plant material to maintain the health and aesthetics of your terrarium.

5. Cleaning: Wipe the glass walls of your terrarium with a soft cloth to remove any dust or water spots that may obstruct light.

By following these maintenance tips, you can enjoy a thriving and beautiful terrarium for years to come.