This Penn Plax deluxe aquarium under gravel starter kit is a rare find, as it is new old stock from 1989. With a tank capacity of 10 gallons, it is perfect for any fish and aquarium enthusiast. The brand, Penn-Plax, is well-respected and known for its high-quality products. This kit includes everything you need to get started, including a filter, and is ideal for beginners or experienced hobbyists. Whether you are looking to start a new aquarium or add to your existing collection, this kit is an excellent choice.