Bio Sand 7.5 kg — Live Aragonite Substrate with Nitrifying Bacteria for Cycling - Aquaforest

Aquaforest Bio Sable 7.5 kg — live aragonite sand with nitrifying bacteria for cycling

The Bio Sable 7.5 kg is Aquaforest's live sand, made from natural aragonite and pre-seeded with selected nitrifying bacterial strains. Unlike classic bed sand that takes weeks to colonize, Bio Sable is biologically ready from the moment the tank fills. Its fine-to-medium grain size delivers excellent biological exchange surface and supports a symbiotic algae garden.

The 7.5 kg bag covers a mid-sized reef aquarium (~24-36 in front) with a 3-5 cm layer. Format compatible with most nano-to-mid reef tanks that want a sand bed for biological and aesthetic role.

Bio Sable's role in the tank

• Immediate bacterial colonization — nitrification operational from fill.
• Aragonite alkaline reserve — the sand slowly releases calcium and carbonate.
• Substrate for sand fauna — nassarius, burrowing snails, benthic gobies.
• Aesthetic role — provides the natural white of a reef bottom.

Setup

• Rinse lightly to flush fines without washing away bacteria.
• Spread in a uniform 3-5 cm layer in the empty tank or at startup.
• Fill gently with prepared saltwater to avoid stirring the sand.
• Let nitrification settle 1-2 weeks before introducing livestock.

Specifications

• Brand: Aquaforest (Poland)
• Format: 7.5 kg bag
• Type: live pre-seeded natural aragonite
• Compatibility: SPS, LPS, soft coral, FOWLR reef tanks

Why choose Aquaforest at ReefSolution

• Bio S 10 ml — the liquid bacteria to combine for a full biological startup.
• Life Bio Fil 1 L — the biological media to round out the sump bacterial population.
• AF Nano Rock 3.5 kg — the porous reef rock that pairs with the sand in the aquascape.

Frequently asked questions

Should I rinse Bio Sable before install?

A light rinse is enough — over-rinsing washes away the pre-seeded bacteria and loses the product's key advantage. The goal is to remove fines that might cloud water, without stripping the live bacterial biomass.

Can Bio Sable serve on a tank reboot?

Yes — on a tank restarting after full cleaning, Bio Sable quickly relaunches nitrification without a weeks-long cycle. Combined with liquid Bio S and Life Bio Fil, it makes the complete Aquaforest biological startup kit.

What layer thickness is recommended?

3-5 cm on a standard reef tank. A thinner layer (1-2 cm) works for tanks without microfauna gardens but cuts biological capacity. A thicker layer (6-10 cm) works as an anaerobic Deep Sand Bed but needs specific management.