HAGEN Phos-X Phosphate Remover, 0.14 oz, treats 15 gal.Traps phosphate, nitrate. Makes maintenance easy. Provides crystal clear water. Reduces odors. Creates ideal conditions for fish. Suitable for fresh and saltwater. Treats 15 gallons. Everything you need for your pets. Top name brands. Wide selection of Dog, Cat, Bird, Fish, Rabbit, Hamster, Small Animal, Snake, Lizard and Reptile supplies. Quality pet products at discounted prices! Be sure to add me to your favorites list!