Tetra is a name you can trust in the aquatics industry. With decades of proven performance and high quality products it’s no wonder Tetra is the go to brand for aquatics beginners and veterans alike. Tetra Water Clarifier works to quickly clear cloudy or hazy aquarium water. This easy-to-use formula safely settles minute particles and cloudy water caused by overfeeding, gravel dust, and other particles. Tetra Water Clarifier is safe to use for all freshwater aquariums and is phosphate free. Tetra Water Clarifier works by causing small, suspended particles to quickly clump together. These larger particles are then removed during normal power filter operation or they settle to the bottom and are removed during gravel cleaning. Tetra Water Clarifier is a safe and effective formula based on clarifiers used to treat drinking water. It is phosphate-free, safe to use with fish and plants, and will not affect water pH levels in your aquarium.