Adding a SubstrateSource Narrow Leaf Chain Sword (Echinodorus tenellus) to your freshwater aquarium helps create a natural look for your tank. As it grows, this plant spreads along your aquarium foreground and helps purify your water by absorbing nitrate nutrients. For best results, remove the plant from it"s plastic pot and rockwool growing media. Happy planting! NOTE: Never release plant species into the wild. Before discarding excess growth, allow the plants to fully dry. Photo depicts sample plant, not the actual plant you will receive. Some discoloration may occur during shipping due to the absence of light during transit.