Seachem – Onyx Gravel™

Onyx Sand™ is a specially fracted, stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any aquarium environment. Being Carbonate rich it provides an advantage to any plants able to utilise bicarbonates. It 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 and as it is not chemically coated or treated, it will not alter the pH of the water.
Although pre-washed, it may be rinsed before use to remove residual dust. Dust can also be minimized by filling aquarium slowly and dispersing water so that the Onyx Sand™ bed is not disturbed. Slight initial cloudiness is normal and will clear rapidly (2–12 hours).
Analysis:-
(Units = mg / kg)
Aluminium 822, Barium 5, Calcium 197500, Cobalt 4, Chromium 10, Copper 4, Iron 2846,
Potassium 417, Magnesium 115400, Manganese 43, Sodium 135, Nickel 7, Vanadium 8,
Zinc 23.
Source: Plasma Emission Spectrometer, EPA Method 6010,
University of Georgia Chemical Analysis Lab
Onyx Sand™ is manufactured in the USA by Seachem Laboratories, Madison, Georgia

Onyx Gravel™ is a specially fracted, stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any aquarium environment. Being Carbonate rich it provides an advantage to any plants able to utilise bicarbonates. It 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 and as it is not chemically coated or treated, it will not alter the pH of the water.

Although pre-washed, it may be rinsed before use to remove residual dust. Dust can also be minimized by filling aquarium slowly and dispersing water so that the Onyx Gravel™ bed is not disturbed. Slight initial cloudiness is normal and will clear rapidly (2–12 hours).

Analysis:-

(Units = mg / kg)
Aluminium 822, Barium 5, Calcium 197500, Cobalt 4, Chromium 10, Copper 4, Iron 2846,Potassium 417, Magnesium 115400, Manganese 43, Sodium 135, Nickel 7, Vanadium 8,Zinc 23.

Source: Plasma Emission Spectrometer, EPA Method 6010,
University of Georgia Chemical Analysis Lab

Onyx Gravel™ is manufactured in the USA by Seachem Laboratories, Madison, Georgia

Available from our eSHOP

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