Fritz Crystal Clear polishes cloudy water fast. It flocculates the fine particles left by overfeeding, gravel dust, and bacterial blooms, clumping them so your filter can catch them or they settle out, leaving the water crystal clear. Safe for fresh, salt, reef, and ponds. Explore more water care.Features Rapidly clears cloudy, hazy water Flocculates fine particles so the filter can remove them 100% phosphate free, so it will not fuel new cloudiness Will not affect biofiltration, pH, or other water parameters Safe for freshwater, saltwater, reef tanks, and ponds Choose Your Size 8 oz for smaller tanks 16 oz for larger tanks and better value How to Use Use 1 teaspoon (5 mL) per 10 gallons (38 L) Repeat as needed, allowing 6 hours between doses Keep mechanical filtration running to capture the clumped particles Specifications Brand Fritz Type Water clarifier (flocculant) Water Type Freshwater, saltwater, reef, ponds Sizes 8 oz, 16 oz Origin Made in USA Recommended Pairings Clean the glass with Fritz Glass & Acrylic Cleaner Keep water pristine with FritzZyme Turbo Clean Browse all water care Frequently Asked QuestionsHow fast does it work?It clumps particles quickly and your filter clears them over a few hours.Is it reef safe?Yes, it is phosphate free and safe for fresh, salt, and reef tanks.Will it hurt my cycle?No, it does not affect biofiltration, pH, or water parameters.