Seachem Purigen Filter Media, 500 ml.
Purigen™ is a premium synthetic adsorbent that is unlike any other filtration product. It is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others by over 500%.
Purigen™ controls ammonia, nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful compounds. Purigen’s™ impact on trace elements is minimal. It significantly raises redox. It polishes water to unparalleled clarity.
Purigen™ darkens progressively as it exhausts, and is easily renewed by treating with bleach. Purigen™ is designed for both marine and freshwater use. T
Rinse before use. Use in a fine mesh filter bag. Each 1 L treats up to 4,000 L (1,000 gallons*) for up to six months. Exhaustion is indicated by a pronounced discoloration of the beads to dark brown or black.
Soak in a 1:1 bleach:water solution for 24 hours in a non-metalic container in a well ventilated area and away from children. Rinse well, then soak for 8 hours with a solution containing 2 tablespoons of ChlorGuard™, Prime™, or equivalent dechlorinator per cup of water. Rinse well. For freshwater use, soak for 4 hours with a solution containing 1 tablespoon of buffer per cup of water (Discus Buffer™, Neutral Regulator™, or Acid Buffer™). Original color and full activity should now be restored and Purigen™ is ready for reuse. Caution: some slime coat products may permanently foul Purigen™ and render regeneration difficult. Do not reuse if odor of chlorine is detectable. In case of doubt, soak beads in small quantity of water and test for residual chlorine with a chlorine test kit.
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Great for controlling nutrient levels Review by Tyler
Purigen is a great tool to use in the battle against nutrients. The color change feature makes it easy to tell when it's exhausted, although the appearance of the tank will confirm it! Using "The Bag" or an appropriately sized low-micron filter is a must, otherwise it will get all over the tank or sump. (Posted on 11/16/2016)
makes the water crystal clear Review by Vi
great filter. just a word of caution, you HAVE to use the special bag "the bag" for these granules. they are too small for regular bags. i have 4 bags of these on my canister filters. crystal clear water. and i love that it is recyclable so it is a great investment because you can use it for years. (Posted on 7/28/2016)