Bio S 50ml — Nitrifying Bacteria Reef Aquarium Nitrogen Cycle - Aquaforest

Aquaforest Bio S 50 ml — nitrifying bacteria economy format for reef nitrogen cycle

The Bio S 50 ml ships Aquaforest's nitrifying bacterial formula in a bottle 5× larger than the 10 ml. Same dose, same Nitrosomonas and Nitrobacter strains — only autonomy changes. Ideal format for 200-500 L reef tanks, multi-tank setups, or aquarists setting up a regular post-water-change routine.

The 50 ml format covers several months of cycling on a mid-sized tank, or several years of post-water-change dosing. More cost-effective per ml than the 10 ml on sustained needs.

Bio S 50 ml use

• Official dose: 1 drop per 100 L of tank water per day for the first two weeks after setup.
• After water change: supplemental dose to offset bacterial loss.
• After medication treatment: reseeding the impacted nitrifying flora.
• Compatibility: can combine with Bio Sable, Life Bio Fil, and MicroBacter Clean with no antagonism.

Role of Bio S bacteria

• Ammonia (NH3) oxidation to nitrites (NO2).
• Nitrite oxidation to nitrates (NO3), less toxic and manageable downstream.
• Partial breakdown of dissolved organic compounds.
• Reinforcement of the bacterial population on live rock and sand.

Specifications

• Brand: Aquaforest (Poland)
• Format: 50 ml bottle
• Type: liquid nitrifying bacteria
• Compatibility: all marine and reef aquarium types

Why choose Aquaforest at ReefSolution

• Bio S 10 ml — the nano format for first trial or small tanks.

Frequently asked questions

How long does a 50 ml bottle last on a 200 L tank?

On a 200 L tank at initial cycling, dose is 2 drops/day (about 0.1 ml). The 50 ml bottle then lasts about 500 days — well past the two critical weeks. In post-water-change dosing only, the bottle covers several years.

Does Bio S store well after opening?

Resealed tightly and kept cool, Bio S keeps its efficacy for several months. Avoid thermal shocks (hot/cold cycling) which can damage the strains. A bottle exposed to sunlight or high temperatures loses efficacy quickly.

Can I dose Bio S alongside Life Bio Fil?

Yes — the two products are complementary. Life Bio Fil is a solid bacterial media that colonizes the filter durably ; Bio S delivers an immediately available liquid load. The Aquaforest protocol explicitly recommends their combined use at startup.