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![Seachem Laboratories Presents Seachem Onyx Sand 7kg (15.4lb) Ph Stabilizing Planted Freshwater Aquarium 7 Kilo. Onyx Sand is a Specially Fracted, Stable Porous Gravel for the Natural Planted Aquarium. Being Carbonate Rich, Onyx Sand Provides an Advantage to any Plants Able to Utilize Bicarbonates. Although Ideally Suited to Planted Aquaria, it may be Used in any Aquarium Environment. Onyx Sand is Most Effective when Used Alone as an Integral Substrate Bed, but it may be Mixed with Other Gravels. Gravel Modifiers Such as Laterite are not Necessary. Onyx Sand is not Chemically Coated or Treated but does have a Slight Buffering Capacity that may Raise Ph by 0.1 - 0.5 Ph Units (Depending on Source Water Characteristics). Although Pre-Washed, it should be Rinsed Before Use to Remove Residual Dust. Dust can also be Minimized by Filling Tank Slowly and Dispersing Water so that the Onyx Sand Bed is not Disturbed. Slight Initial Cloudiness is Normal and will Clear Rapidly. 7 Kilo [30326]](http://cdn.petcarerx.com/img/PrdImg/408x408/20060_001_xl.jpg)
Seachem Laboratories Presents Seachem Onyx Sand 7kg (15.4lb) Ph Stabilizing Planted Freshwater Aquarium 7 Kilo. Onyx Sand is a Specially Fracted, Stable Porous Gravel for the Natural Planted ...
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Price: $22.99
Regular Price: $34.99
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![Seachem Laboratories Presents Seachem Onyx Gravel 7kg (15.4lb) Ph Stabilizing Planted Freshwater Aquarium 7 Kilo. Onyx™ is a Specially Fracted Porous Substrate for the Aquarium. Onyx™ is Suitable for any Marine or Freshwater Environments and is Ideally Suited for Cichlid Environments. Onyx™ is Most Effective when Used Alone as an Integral Substrate Bed, but it may be Mixed with Other Gravels or Sands. Onyx™ is not Chemically Coated or Treated but does have a Slight Buffering Capacity. [30325]](http://cdn.petcarerx.com/img/PrdImg/408x408/20059_001_xl.jpg)
Seachem Laboratories Presents Seachem Onyx Gravel 7kg (15.4lb) Ph Stabilizing Planted Freshwater Aquarium 7 Kilo. Onyx™ is a Specially Fracted Porous Substrate for the Aquarium. Onyx™ is Suitable ...
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Price: $22.99
Regular Price: $34.99
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![Pura (Magnavore) Presents Pura Phoslock 795gm Treats 1600gals. Pura Phoslock is Fast Acting, Long Lasting, and Very Effective in Reef, Marine, Planted, and Delicate Freshwater Aquaria. Phoslock is the Third Generation Ferric Oxide Hydroxide Specifically Modified for Use in Aquarium Applications. Phoslock is Stable and will not Disintegrate Even if Subjected to High Flow Rates. It does not Contaminate Water with Free Iron. Removes Large Quantities of Phosphate and Silicates Thus Greatly Reduces Propagation of Algae. Removes Arsenic and Other Heavy Metals. Safe for the Most Delicate Invertebrates - does not Contaminate Water with Free Iron. Non-Leaching, Permanently and Irreversibly Binds Phosphate and Silicates. No Impact on Trace Elements and Desirable Fertilizers Like Potassium Convenient to Implement, Comes with a 6' X 12' 300-Micron Media Bag. [28855]](http://cdn.petcarerx.com/img/PrdImg/408x408/19332_001_xl.jpg)
Pura (Magnavore) Presents Pura Phoslock 795gm Treats 1600gals. Pura Phoslock is Fast Acting, Long Lasting, and Very Effective in Reef, Marine, Planted, and Delicate Freshwater Aquaria. Phoslock is ...
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Price: $52.99
Regular Price: $79.99