Open Terrarium Concrete Basin

Concrete basin designed for an open terrarium planting. This enclosure is an approximate Golden Rectangle with walls 2″ (5cm) thick and measuring 31″ (79cm) X 19.5″ (50cm) X 7″ (18cm) on the inside. Masonry waterproofer was applied to the inside of the basin, leaving about an inch of bare concrete below the top ledge.