Fritz Guard is a pH-buffered water conditioner that makes tap water safe by instantly neutralizing chlorine, chloramine, and heavy metals. It also adds a replacement slime coat with aloe vera and vitamin E and provides electrolytes to reduce stress. For freshwater and saltwater. Explore more water care.Features Neutralizes chlorine, chloramine, and heavy metals Adds a replacement slime coat with aloe vera and vitamin E Provides electrolytes and reduces stress Helps beneficial bacteria colonize filter media pH-buffered and safe for freshwater and saltwater Choose Your Size 4 oz and 8 oz for smaller tanks 16 oz for regular use 1 gallon for large tanks and best value How to Use Use 5 mL (1 tsp) per 10 gallons (38 L) Dose at every water change and when adding tap water Can be safely increased up to 5x in very high-chlorine areas Specifications Brand Fritz Type Water conditioner (dechlorinator and slime coat) Water Type Freshwater and saltwater Sizes 4 oz, 8 oz, 16 oz, 1 gallon Origin Made in USA Recommended Pairings Rebuild the biofilter with FritzZyme Trace Detoxify ammonia with Fritz A.C.C.R. Browse more water care Frequently Asked QuestionsWhat does it remove?Chlorine, chloramine, and heavy metals from tap water.Does it add a slime coat?Yes, with aloe vera and vitamin E.Fresh and saltwater?Yes, it works in both.