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 A water filtration system in a pouch that contains natural and synthetic ion-exchange resins. Selectively removes toxic ammonia, nitrite, and nitrate – a nutrient found in all freshwater aquariums. Contains no phosphates, will not affect pH, is compatible with activated carbon, and its convenient pouch can be easily recharged with freshwater aquarium salt. Small 20 gallon size fits easily in Whisper™ filters. Large size is for 55 gallon tanks. |
Nitra-zorb 3.7 oz.:Price: $6.99
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