Check the listing for details. Fritz Guard 16oz Water Conditioner Make Tap Water Safe Instantly Remove Chlorine. Condition: New. Listed at 21.99 USD. Fritz Guard 16oz FritzGuard is a safe and effective pH-buffered water conditioner that neutralizes toxic chlorine, chloramines and heavy metals found in tap water. FritzGuard promotes healing and reduces fish stress with aloe vera and vitamin E and provides necessary electrolytes. Naturally secreted by mucous glands, the slime coat is a natural defense system that protects fish from disease, aids in osmoregulation and reduces stress caused by sudden changes in the environment. FritzGuard provides a replacement slime coat to aid fish that have lost theirs or have been injured due to stress, poor water conditions and handling. FritzGuard enhances biofiltration by producing a slime coat over the filter media, aiding in the attachment of beneficial bacteria, like those in FritzZyme biological products. Detoxifies Chlorine, Chloramines, and Heavy Metals.Enhanced with Aloe Vera, Vitamin E, and Electrolytes.Promotes Slime Coat Regeneration.Reduces Stress.Aids Establishment of Nitrifying Bacteria.Safe for Fresh and Saltwater Systems. Directions: Use 5 mL (1 tsp) per 10 U.S. gallons (38 L). For areas with very high chlorine levels, dosage can be safely increased or repeated up to 5x. For best results, add FritzGuard to tap water in a separate container before adding water to aquarium.For marine aquariums, turn off protein skimmer for 6 hours after adding FritzGuard to reduce foaming.No other equipment restrictions necessary.No contraindications: can be used with all other Fritz products and meds.Easy measuring: the 8 oz and 16 oz bottle caps are approximately 5 mL volumeIt’s safe to increase dosage up to five times. Observe livestock for distress, perform small water changes if needed.Test with a chlorine test kit. Size: 16 oz (treats 946 gallons)