2Hr Aquarist APT S Starter Bacteria – 45g

Substrate Enrichment + Starter Bacteria for New Tanks

APT START is your essential all-in-one boost for setting up new aquariums the 2Hr Way™. It supercharges your aquasoil and kickstarts biological activity with beneficial bacteria—accelerating substrate maturity and reducing the risk of plant melt or algae outbreaks in the critical early weeks.

Whether you're using premium aquasoils or standard substrates, APT START enhances performance, delivering a nutrient-rich base and early microbial stability for healthy root development and faster tank cycling.

Why Use APT START?

Substrate Enrichment – Adds essential macronutrients and micronutrients to 90% of aquasoils.
Biological Kickstart – Infused with beneficial bacteria to accelerate substrate colonisation.
Faster Tank Maturity – Speeds up readiness for both planting and livestock.
Reduces Risk of Algae & Plant Melt – Ideal for avoiding common early-stage problems.

Directions for Use

• Use 1 pouch (45g) per 60 x 30cm area of aquarium base.

• Apply beneath the aquasoil layer for best results.

Formula Details

• NPK (Mg, Ca) Ratio: 8.8-0-0.5

• 8.8% Total Nitrogen (N): 1.8% nitric, 7% ammoniacal

• 0.6% Potassium oxide (K₂O)

• 4.5% Calcium oxide (CaO)

• 1.5% Magnesium oxide (MgO)

• 0.01% Iron (Fe) – EDTA chelated

All macro and micronutrients are fully water soluble.

Ingredients: Clay, Calcium sulfate, Ammonium sulfate, Potassium sulfate, Magnesium sulfate, Magnesium nitrate, and a proprietary bacteria blend.