Composed of a biodegradable polymer, the pellets are designed for use in a fluidized media reactors. The Pellets promote the growth of aerobic and anaerobic nitrifying bacteria which use carbon from the pellets to consume nitrate and phosphate. This process dramatically eliminates unsightly algae and cyanobacteria (red slime) while increasing the overall health and vigor of a tanks inhabitants. The surplus bacterial generated by the biopellets are then consumed by sponges and corals or removed by a protein skimmer. Within a few weeks, without any routine dosing, even the most novice of reef keepers can maintain a crystal clear tank.