Aqua Ocean Premium Coral Sand – Size #1 (0.3-1mm) | 5kg Bag
Aqua Ocean Premium Coral Sand is a natural aragonite-based substrate sourced from pollution-free islands in the South China Sea. Free from phosphate, nitrate and surface contaminants, it is clean, safe and ready to use in marine and freshwater aquaria. The main component is calcium carbonate, which naturally buffers and stabilises pH in seawater, making it ideal for reef, marine and hard-water setups such as African cichlid tanks.
Key Features
- Grain Size: 0.3–1mm (Size #1 – Extra Fine / Oolite Grade)
- Weight: 5kg per bag
- Composition: Natural aragonite / calcium carbonate
- Origin: Pollution-free islands, South China Sea
- Free from: Phosphate, nitrate and surface contaminants
- pH Buffering: Helps stabilise pH in marine aquariums
- Large surface area – supports beneficial bacteria for biological filtration
Best For
- Reef aquariums with sand-sifting fish and invertebrates (gobies, wrasses, starfish)
- Low to medium flow tanks where a natural, fine sandy look is desired
- Nano and pico marine setups
- Creating shallow, white sand beds with a tropical lagoon appearance
Instructions for Use
- Rinse thoroughly with fresh water before adding to your aquarium
- Recommended depth: 2.5–5cm; avoid very deep beds to prevent anaerobic pockets
- Add slowly to avoid clouding the water; clarity returns within a few hours
- Not recommended for high-flow areas where fine sand may shift
🥄 Feeding Guide:
Serve at room temperature as a complementary food to support a balanced diet. Offer alongside dry food and ensure fresh water is always available. Store in a cool, dry place. Refrigerate after opening and use within 24 hours.

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