Tetra CrystalWater, for Crystal Clear Water Fish Tank, 100 ml

Amazon

For crystal clear aquarium water For all freshwater aquariums Safe for all aquarium inhabitants Fast acting formula: visible results within 6-12 hours Available in 2 sizes; 100ml & 250ml

ManoMano

General description Safely and reliably removes dirt particles that cloud the aquarium water, making it crystal clear for the well-being of your fish and plants.