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Seachem Gray Coast Sand 10 kg

Gray Coast Calcite is an all natural calcite substrate for all types of marine, reef and tropical aquaria.
$62.50 incl GST
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 Its chemical composition will assist in stabilizing calcium and alkalinity while preventing large pH declines. Unlike competing “wet” gravels, Gray Coast is sold dry: this bag contains 35% more gravel than a bag of wet gravel of equal weight.

Simply rinse before use to remove any residual dust. To determine the number of bags required for your aquarium, please note that each bag (10 kg, 22 lbs) occupies a volume of 6,000 cm3 (366 cu. in.). To determine your desired volume multiply tank width by length by desired depth.