Seachem Gray Coast 3.5kg

Gray Coast Calcite 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. 

Set-up

Although it is pre-washed, because GrayCoast is a natural product, it may become dusty in transit and require rinsing before use to remove any residual dust.

When adding water to aquarium, fill slowly to avoid disturbing Gray Coast substrate bed. Place a bowl in the aquarium and add water directly to the bowl, allowing water to overflow softly on to the gravel bed. Initial cloudiness is normal. 

Please Note: This substrate is not suitable for soft water setups! When used with plants extra care has to be taken and regular maintenance is needed.