Black and white poly or panda film is a great tool for reflecting light and blocking light. It is waterproof and doesn't scrape or scuff. Use the panda film to divide an indoor garden space to suit your needs.
This waterproof poly film (panda film) is black on the outside and white on the inside. The 5 mil thickness polyethylene film offers excellent protection. The white surface reflects the light evenly and sends light back to your growing plants. The black surface helps block the light from getting to the ground which keeps the weed growth down and the soil warm. The waterproof, light-proof, washable film also helps prevent algae and mold growth. The film also help prevent some insects from attacking your plants. Double it up by putting the black surfaces together to economically and effectively partition off indoor gardens.