Neoregelia Voodoo Doll is a large-sized bromeliad that is perfect for a centerpiece in a 36 inch vivarium or larger. They can be crammed into 18x24 inch vivariums, but this is not recommended, as they can get 20 inches in diameter. This bromeliad is deep purple / pink. High light increases color. Color upon receipt may be duller due to growing in lower light conditions. Bromeliads are epiphytic and will send roots out in order to attach to other plants, rocks, or backgrounds. Bromeliads also hold water in their leaves, providing deposition sites for tadpoles. For this reason, we do not recommend planting this Bromeliad in the substrate; if they are watered from the bottom and top, the core can rot. Many dart frogs, especially Oophaga, rely on these plants (and film canisters in captivity) for breeding. Bromeliads form pups from the mature plant and will clump together. Please add fresh water to your bromeliads at least weekly, and allow them adequate ventilation. If you do not have ventilation, we do not recommend keeping them fully filled with water.