Seachem 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.
Why It's Different
Selectivity: Purigen® is the highest capacity organic filtration
resin on the market. No other products can compare to its ability to clear
haziness and polish water to unparalleled clarity. Unlike other products
on the market which are simple ion-exchange resins, Purigen® is
specifically designed to be an organic scavenging resin. When ion-exchange
resins are filled to capacity by metals and other contaminants, Purigen® has
barely begun to reach its potential. Purigen® generally ignores
simple elemental compounds, having an extreme affinity for nitrogenous
organics. The primary source of nitrogenous compounds in an aquarium is
waste. Fish, corals, even plants produce nitrogenous waste. Purigen® removes
that waste faster and more completely than anything else on the market.
Capacity: Purigen’s™ possesses enhanced capacity owing to
its vast surface area. All other resins on the market are purely spherical
extruded beads. These beads remain smooth even under a microscope. Purigen® is
both spherical and macroreticular. It has microscopic pores that increase
its usable surface area to many times that of a purely spherical resin.
Regeneration: Purigen® can also be regenerated. As it adsorbs waste
products, Purigen® will change color from a pale blonde to a dark
brown, almost black. Once it is exhausted, it can be regenerated with
a solution of bleach and water. The bleach will literally “burn
off” the organics that have been removed from the tank. Watch out
for products that claim to be regenerable with a brine solution. That
is the regeneration procedure for ion-exchange purposes. A brine solution
will not remove organics. While such resins have a limited capacity for
organic adsorption, a brine regeneration process only replaces removed
ionic compounds. It does not destroy large organic molecules that were
removed, which is the primary function of organic adsorption resins.
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 NoRenewal. Exhaustion is indicated
by a pronounced discoloration of the beads to dark brown or black.
Regeneration: Soak in a 1:1
bleach:water solution for 24 hours in a non-metallic container in a well
ventilated area and away from children. Use regular 8.25% hypochlorite household bleach (non-scented, no dyes, do not use a splash-less bleach).
Rinse well, then soak for 8 hours with a solution containing 4
tablespoons of Prime®, or equivalent dechlorinator per cup of water.
Rinse well. For freshwater use, soak for 4 hours with a solution
containing 2 tablespoon of buffer per cup of water (Discus Buffer®,
Neutral Regulator®). 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 bleach/chlorine is detectable. In
case of doubt, soak beads in small quantity of water and test for
residual chlorine with a chlorine test kit.