2Hr Aquarist APT 3 – Complete is a high-precision, full-spectrum all-in-one fertilizer engineered for demanding planted aquariums. Developed by Dennis Wong, APT 3 is built for aquascapes running medium to high light, consistent CO₂ injection and a goal of achieving compact growth, vibrant coloration and predictable long-term performance.
How APT 3 works
APT 3 provides all essential macro and micro nutrients (NO₃, PO₄, K, Fe, Mg, Mn, Zn, B and more) in ratios that support strong plant metabolism without nutrient accumulation or imbalance. This results in improved CO₂ uptake, stronger photosynthesis and more efficient cell division.
Balanced NO₃:PO₄:K ratio
The formula is based on actual plant demand rather than theoretical limitations. APT 3 is ideal for:
- medium to high-light planted tanks
- CO₂-enriched systems
- densely planted aquascapes
- demanding stem plants and fast growers
Superior photosynthesis & enhanced red pigmentation
The chelated iron and micro nutrient blend in APT 3 is optimized for high-light environments. This increases the production of anthocyanins, the red pigments responsible for rich coloration in species like Rotala, Ludwigia and Alternanthera. Plants stay compact, healthy and richly colored.
Macronutrients – the engine of growth
- Nitrate (NO₃): drives new tissue formation and strong green growth.
- Phosphate (PO₄): essential for ATP, energy transfer and rapid metabolism.
- Potassium (K): improves nutrient transport and tissue strength.
Micronutrients – the fine tuning
A precise blend of chelated iron, manganese, zinc, boron, copper and molybdenum ensures strong enzyme activity, pigment formation and chlorophyll development.
Key benefits
- Compact growth and vibrant coloration
- Stable, predictable nutrient delivery
- Ideal for high-tech aquascapes
- Excellent for demanding plant species
- Minimal need for additional supplements
Best suited for
- High-tech aquariums
- Iwagumi / Nature style layouts
- Densely planted tanks
- CO₂-enriched environments
Dosage
Dose daily or weekly according to 2Hr Aquarist guidelines. Adjust based on plant density and light intensity.
Pairing with other products
Combine with APT Fix for algae control or recovery from imbalance. Works seamlessly with the full APT system.
Shipping
Bulgaria: 1–2 days · Romania/Greece: 2–3 days · Europe: 4–5 days · Free shipping over €40.
