Easily remove nitrogen and phosphates swimming in your tank using the ultra efficient and ultra safe bio pellets by Reef Interests, Two Little Fishies, Warner Marine, and our very own mix- TB Aquatics Simplicity Biopellets. With these bio pellets, you won't need separate reactors and substrates to remove nitrogen and phosphates because they get rid of both. These pellets are made up of biologically degradable polymers that allow growth of special bacteria which eat up nitrates and phosphates. They also produce layers of bacteria that will help ensure that nitrates from uneaten fish food and animal waste are kept at levels close to zero. With these biopellets, your aquarium water is guaranteed safe and crystal clear.