Green Killing Machine - UV Sterilizer Kit - 3W

Keep your aquarium water crisp and clean with the AA Aquarium Green Killing Machine Kit. This internal UV sterilizer quickly and easily creates a crystal-clear environment for your tank inhabitants with no need for any hardware or external plumbing. A zigzag flow pattern forces the water to come in contact with the UV light which controls the growth of bacteria, yeast, algae, and mold.