Bio-Substrate Gravel Ice White 2.26kg

All Aqua Natural gravel or substrates are 100% natural, sustainably sourced, triple washed and kiln dried. Our meticulously graded gravels and sands are the perfect natural substrates for any aquarium including planted tanks. Our high-quality products create natural beauty combined with large surface areas for beneficial bacteria colonies and easy cleaning.

Nitrifying Bacteria

Pack contains bio activated live nitrifying bacteria to either use as a primary substrate or mix with substrate for a healthy aquarium. Contains a patented blend of live nitrosomas and nitrobacter bacteria which break down and convert harmful ammonia, into nitrates.

Directions for use:

PRIMARY (not mixed with Dry Substrate)

Usage Calculator: Use 1lb (450g) of Bio-Substrate for every 1 gallons (3.8 litres) of water.

• DO NOT rinse before use.
• Spread substrate and fill with water slowly. Avoid stirring up the substrate.
• Once the tank is filled, start your filter. Any cloudy appearance should clear over time.

MIXED (mixed with Dry Substrate)

Usage Calculator: Use 1lb (450g) of mixed LIVE Bio-Substrate and DRY Substrate for every 1 gallons (3.8 litres) of water. Mixing ratio is 1:4 (1 LIVE to 4 DRY).

• DO NOT rinse before use.
• Mix Bio-Substrate and Dry Substrate thoroughly.
• Now spread mixed substrate and fill with water slowly. Avoid stirring up the substrate.
• Once the tank is filled, start your filter.
• Any cloudy appearance should clear over time.

LIVE nitrosomas and nitrobacter bacteria are harmless to marine life. Use with any corresponding Dry Aqua Natural