The palm tail spring is a product of the Borassus flabellifer palm tree. It is native to South and Southeast Asia, and it's a palm tree of the Sugar palm group. The palm tail springs have a unique spiral shape, which if exposed to a lot of water or misting, they will uncurl. We have them in our dart frog vivariums, and they do uncurl, but isopods and springtails really enjoy them, and our frogs like to snack on the springtails that crawl on the springs. Please visit our sister website www.naturepodsbotanicals.com for bulk quantities. Product Details: Source Location: India. Size: 4 to 6 inches long. 100% Natural: Organically sourced and naturally dried, these pods are free from artificial chemicals, making them a safe and sustainable choice for various applications. Highly Versatile: Aquarium: Tail springs promote biofilm, and shrimp especially enjoy the springs. They also contribute to a natural environment which stimulates natural behaviors for fish and shrimp. NOTE: These springs do elongate, and the springs or curls spread farther apart when they get wet. Bioactive Terrariums: Palm spring curls add texture to enclosure floors. Provides hiding spots and a food source for isopods, and springtails, enriches the substrate by releasing nutrients as they break down, and encourages natural and instinctive behaviors such as forging and exploring. NOTE: These springs do elongate, and the springs or curls spread farther apart when they get wet. No additional preparation of the botanicals is necessary for bioactive enclosures. Preparation for Aquarium/Paludarium Use: Boil: Boil the pods for at least 15 minutes to help them sink and leach initial tannins. Soak: Soak in clean water overnight or longer if needed, changing the water daily, until they are fully waterlogged and the desired amount of tannin has been leached. Ready to Use: Once they sink and you've achieved your desired water coloration, they are ready to be added to your setup. Please Note: As a natural product, each palm tail spring is unique and will vary in size, shape, and coloration. These pods are intended for decorative, craft, and aquarium/vivarium use only and are not for human consumption. SHIPS FREE WITH LIVE ANIMAL PURCHASES