"If there is no lid on your terrarium, you can use a glass plate on the top," Carr says. "Or if it's a narrow-necked bottle, use a lightbulb to block the opening and create extra humidity." ...

They are either mostly closed to outside air and opened to add water or are permanently sealed to create a self-sustaining climate within the bottle ... the terrarium cools the glass while ...

Ben Newell The mini ecosystems have been created inside many different glass objects, including fish bowls. Mr Newell has made terrariums in small containers such as glass phials and apothecary ...