Renew? is ideal for use in systems where phosphate released from all activated carbons poses a problem. Renew? is also less aggressive than carbon, making it well suited for reefs and planted aquaria. It is also beneficial for use in soft water aquaria where the pH-raising property of many carbons is not an asset. Renew? will remove organics and particulates in the sub-micron range; it will also help control ammonia, nitrates, and phosphates. This product is sold by volume. Cited weight is minimal weight.DIRECTIONS: Renew? should be used in exactly the same manner as activated carbon. Use 500 mL for each 240?320 L (60?80 gallons*). Use in a filter bag only. Although Renew? is clean, it is advisable to rinse before use. It lasts about the same as carbon (4?6 weeks).i500 mL / 17 fl. oz. (Treats 320 L (85 US Gallons))
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