Coral Rubble 1kg
Natural Calcium Source for Aquariums & RO Remineralization
Coral Rubble is a natural and effective way to increase carbonate hardness (kH), general hardness (gH), and stabilize pH levels in freshwater, marine, and reef aquariums. Made from crushed coral fragments, this mineral-rich media slowly releases calcium, magnesium, and trace elements—perfect for RO remineralization, hard water aquariums, or as a plant nutrient additive.
Ideal for use in filters, sumps, or as substrate support to maintain water chemistry balance naturally.
Key Features
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Raises kH and gH naturally to stabilize aquarium pH
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Ideal for RO/DI water remineralization
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Provides calcium and trace minerals beneficial to aquatic plants and invertebrates
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Suitable for freshwater, marine, and reef systems
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Can be used in filter bags, media reactors, or directly in the substrate
Usage Suggestions
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For RO remineralization: Add small amounts to the filter chamber or a media bag.
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For aquascaping or substrate use: Layer beneath gravel or use as decorative media.
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Rinse before use to remove fine dust.
