Lighting a terrarium
4 min read
Windows
Direct sun heats glass like a magnifier and can cook a sealed jar. Choose a bright spot out of direct sun, or filter it through a curtain.
Grow lights
A small full-spectrum LED on a timer for 10 to 12 hours a day suits most tropical plants. Place it a hand or two above the plants.
Signs of trouble
- stretching toward the light: not enough
- bleached or scorched leaves: too much
- algae on the glass: too much light for the amount of plants