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Zoptus's crushed coral is coral rock that has been finely crushed and is used as a substrate in an aquarium. It is usually used in saltwater aquariums, as it is a very good alternative for all marine water tanks. But can be used in freshwater aquariums when trying to maintain alkalinity and for tanks with fishes from the east african lakes (Malawi and Tanganyika).
Prewashed and guaranteed free from harmful substances.
Zoptus Coral sand doesn't use any color dye.
Use nothing but non-living sand as all sand eventually becomes live over time, due to the nitrogen cycling process.
Here are some suggested amounts of live sand to use from noted experts:
In his book Simplified Reefkeeping, author Robert Metelsky recommends a thickness of approximately 1 3/4 to 2 inches, which calculates to 1.45 pounds of sand per gallon, or 80 pounds for a 55-gallon tank.
The FINS Reefkeeper Live Sand FAQ page suggests 10 pounds of live sand per square foot of bottom area, which yields about a 1-inch-deep covering.
In The New Marine Aquarium, author Michael Paletta's recommends a depth of 1/2 to 1 inch.
As you can see, there is some variation among the recommended amounts, and, indeed, different tanks will need different amounts. But the bottom line is that a layer between 1/2 inch and 2 inches covering the bottom of the tank should be sufficient.
Very high quality.
Grain size: 2-3 mm / 3-4mm
5KG Bag
