Rinse before use. Use in a fine mesh (180 micron or less) filter bag such as Seachem’s The Bag™. Each 250 mL treats up to 1,000 L (250 US gallons) for up to six months. Exhaustion is indicated by a pronounced discoloration of the beads to dark brown or black.
Purigen® Dosing Tables
Like most Seachem® filter medias, Purigen is available in a convenient 100 mL pre-bagged packet which treats 100 gallons. There is no such thing as a "Purigen® overdose" so this packet may be used in extremely small tanks as well.
| Water Volume | 1 gal / 4 L | 10 gal / 38 L | 20 gal / 76 L | 60 gal / 227L |
| Purigen® Dose (mL) | 1 mL | 10 mL | 20 mL | 60 mL |
| Purigen® Dose (Tsp) | 1/5 tsp | 2 tsp | 4 tsp |
12 tsp |
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