The right light is essential for the health of your plants.
There are two simple rules to prevent your plant from getting too little light and starting to mold, or too much light that could cause the plants to burn. Think especially of direct sunlight.
Place your terrarium close to a window, but make sure that no direct sunlight can fall on it. North-facing windows often provide too little light.
Turn your terrarium a quarter turn every two weeks. This way the plants get even and sufficient light.
An open terrarium should receive regular water, but less than a pot plant because the grit keeps the soil moist. In the spring and summer you water on average once a week, in the autumn and winter period every two to three weeks because your plants then go to rest.
This is an indication, it is best to check the soil regularly. If it feels dry, it's time to water your terrarium.
The terrariums should be indoors and the best temperature is between the 16 and 27 degrees.
If it is warmer than 27 degrees, open the pot briefly and water if necessary.