Grey Coast is an all-natural calcite substrate for all types of marine, reef and tropical aquaria. Its chemical composition will assist in stabilizing calcium and alkalinity while preventing large ... Read more
Grey Coast is an all-natural calcite substrate for all types of marine, reef and tropical aquaria. Its chemical composition will assist in stabilizing calcium and alkalinity while preventing large pH declines. Simply rinse before use to remove any residual dust. Gray Coast is sold dry: this bag contains 35% more gravel than a bag of wet gravel of equal weight.. Dry or wet, competing brands have bacteria on every substrate. If one is concerned with shortening the aquarium cycle time for a new system, then the use of a product designed for that particular purpose would be more appropriate, such as Seachem’s Stability. Seachem offers a wide range of solutions to any aquarium problem.
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