Purigen 500ml

Purigen is a synthetic filter resin for keepers of marine and freshwater aquariums who want to remove organic compounds and nitrogenous waste that conventional ion-exchange media leave behind. It is supplied as 500 ml of granules, which are packed into a fine-mesh filter bag and placed in the filtration circuit.

Why it matters

• The granules are macroporous and spherical, which increases the contact surface with the water compared with the smooth beads used in most other resins.
• Unlike resins that only exchange ions, Purigen also captures larger organic molecules containing nitrogen, which are mainly produced by fish and invertebrate waste and decaying plant material.
• The resin darkens from pale to dark brown and nearly black as it fills up, so the moment to replace or regenerate it is visible without testing.
• Spent granules can be regenerated by rinsing them in a diluted household bleach solution, which also removes accumulated organic deposits that salt-based regeneration would not.

Specifications

• Brand: Seachem
• Model/symbol: Purigen 500ml
• Volume: 500 ml
• Weight: 0.5 kg
• EAN: 000116016308

What it works with

Purigen is intended for use in marine and freshwater aquariums and sits in the filtration path alongside mechanical and biological media. Its role is chemical polishing of the water, so it fits tanks where ammonia, nitrite and nitrate control and water clarity are the priorities.