Features:

• Product 1: FILTRATION: Purigen ranges in color from almost white (cream) to light yellow. Seachem Purigen is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water.
• Product 1: SELECTIVITY: Seachem Purigen is an organic filtration resin that works hard to remove nitrogenous compounds and waste produced by fish, corals, and even plants, making your water crystal clear.
• Product 1: CAPACITY: Being both spherical and macroreticular, Seachem Purigen has microscopic pores that increase its usable surface area to many times that of a purely spherical resin.
• Product 1: REGENERATION: Once Seachem’s Purigen 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.
• Product 2: Rapidly Removes Phosphate And Silicate From Marine And Freshwater Aquaria
• Product 2: Highly Porous For High Capacity And Bead Shaped For Optimum Water Flow
• Product 2: Outperforms all competing products
• Product 2: Not Recommended For Phosphate Based Buffers In Freshwater Aquaria

Details:

Seachem Purigen Organic Filtration Resin - Fresh and Saltwater 100 ml Seachem Purigen 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 an excelled rate and capacity. Seachem PhosGuard, 100 mL bagged - 67101850 Phosguard rapidly removes phosphate and silicate from marine and freshwater aquaria.

It is not recommended for phosphate buffered freshwater. Phosguard is highly porous for high capacity and bead-shaped for optimum water flow. It outperforms all competing products.