Aqua Natural aquarium substrate with live bacteria
Aqua Natural aquarium substrate shipped wet and seeded with live nitrifying bacteria. Use a bag on its own in a small aquarium or mix it 1:4 with the matching substrate to cycle a new setup instantly.
8 products · Wet substrate seeded with live nitrifying bacteria to cycle a tank on day one.
Cycles instantly
1:4 mixer
2-pack too
Gravel
Quartz
Kit
ComboAbout bio-substrate
Is Aqua Natural bio substrate good?
For new setups it removes the waiting: the bacteria that turn ammonia into nitrate are already in the bag. Keep the shipping water, don't rinse, and add fish gradually.
Which one to pick
Match the colour of your floor — each bio bag is the same natural grain as its dry version: Sugar White, Galaxy, Delta, Prairie, Midnight Pearl or Diamond Black.
Freshwater only
Bio-substrates are made for freshwater aquatic setups — planted aquariums, betta and community tanks. For saltwater, reef and corals, use aragonite; for the filter, use live media.
Gold Pearl and kits
The Midnight kit pairs a wet bag with 10 lb of dry pebble, and the combo pairs Sugar White with Galaxy bio — both are sourced, washed and graded like the rest of the range.