Seachem Renew

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Seachem Renew is an aquarium water additive that helps reduce phosphate levels in your aquarium before it can become fertiliser for algae. Use as instructed, and it yields excellent results in your tank, available at the best price from Swell UK.


  • Renew 500ml Sale
    code: sea83 In stock Only 4 left in stock

Product Information

Seachem Renew, available from Swell UK, 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.


  • Renew should be used in exactly the same manner as activated carbon.
  • Use 250 mL for each 120-160 L.
  • 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).


  • Shape - Granular, Size 1-1.5 g/cc, Density 0.38-0.42 g/cc.
  • Pore Volume (PV) 0.50-0.60 mL/cc, Total Surface Area (TSA) 500-600 m2/cc TSA/PV 830-1200 m2/ml.
  • Molasses # 600-700 pH in distilled water <7.2.
  • Leachable Phosphate 0 g/cc.
  • 500 ml container.

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