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Editorial Review
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).

Features
1) Fracted Porous Substrate For The Aquarium
2) Specially Fracted Porous Substrate For The Aquarium; Suitable For Most Marine And Freshwater Environments Including Reef And Planted Aquariums
3) Most effective when used alone as an integral substrate bed but may be mixed with other gravels or sands
4) Not Chemically Coated Or Treated But Does Have A Slight Buffering Capacity

Specification
Binding : Misc.
Brand : Seachem
Color : black
EAN : 0000116350501
Label : Seachem Laboratories, Inc.
Manufacturer : Seachem Laboratories, Inc.
Model : 3505
PackageDimensions_Weight : 16.10 pounds
PackageDimensions : L:16.00 X W:11.00 X H:1.60
ProductGroup : Pet Products
ProductTypeName : PET_SUPPLIES
Publisher : Seachem Laboratories, Inc.
Size : 7 kg / 15.4 lbs
Studio : Seachem Laboratories, Inc.
Title : Onyx Sand, 7 kg / 15.4 lbs