2HR Aquarist APT Estimative Index 200ml, 300ml & 500ml | Advanced Nutrient-Rich Fertilizer for Dutch Style CO₂ Planted Tanks

Description

2HR Aquarist APT Estimative Index 200ml, 300ml & 500ml | Advanced Nutrient-Rich Fertilizer for Dutch Style CO₂ Planted Tanks.

The 2HR Aquarist APT Estimative Index is a powerfully concentrated liquid fertilizer designed for high-demand planted aquariums, especially Dutch-style CO₂-enriched tanks. Developed by The 2Hr Aquarist, this formula is a refined evolution of the classic Estimative Index (EI) approach, delivering a perfectly balanced and nutrient-rich dosing system that caters to the most demanding aquatic plants.

This advanced EI formulation ensures an abundant supply of macronutrients (Nitrogen, Phosphorus, Potassium) and micronutrients (Iron, Magnesium, Manganese, Boron, and Zinc) - in precise ratios that fuel vigorous plant growth, intense coloration, and healthy root and leaf development. It’s the ideal choice for experienced aquascapers who want deeper greens, more vivid reds, and an overall explosion of life and color in their aquariums.

Unlike conventional EI fertilizers that can cause nutrient waste or instability, APT Estimative Index follows the 2Hr Aquarist precision nutrient calibration, ensuring maximum uptake and minimal residue. Its stable and bioavailable nutrients are specially formulated to perform optimally in CO₂-rich, high-light environments - promoting lush, fast, and controlled plant growth without encouraging algae.

Key Features and Benefits:

• Optimized for Dutch-Style Aquascapes: Perfect for nutrient-hungry, densely planted tanks.

• High Concentration Formula: Delivers robust doses of macro and micro elements for superior plant performance.

• Deeper Greens & Richer Reds: Enhances pigment formation and brings out vivid plant colors naturally.

• Supports Healthy Root & Leaf Growth: Ensures balanced nutrient distribution throughout the plant system.

• Refined EI Approach: Prevents over-fertilization while maintaining steady nutrient levels.

• Boosts Photosynthesis Efficiency: Perfect synergy with CO₂ injection and strong lighting systems.

• Professional Grade & Proven Results: Trusted by expert aquascapers worldwide for consistent success.

Usage Instructions:

• Dosage: Add 5ml per 100 liters of aquarium water daily or on alternate days, depending on plant density and CO₂ availability.

• Perform weekly water changes (40–50%) to reset nutrient levels as per the EI method.

• Shake well before use and distribute evenly across the aquarium.

• Use with other 2Hr Aquarist products like APT Start or APT Fix for complete system care.

Ideal For:

• High-tech CO₂-injected planted tanks.

• Dutch-style aquariums with dense plant arrangements.

• Fast-growing aquatic plants and high-light setups.

• Aquarists who want full control over nutrient dosing and growth performance.

Why Choose 2HR Aquarist APT Estimative Index?
Traditional Estimative Index dosing methods can be complex and inconsistent, but APT Estimative Index simplifies the process with a calibrated, ready-to-use liquid blend that delivers precise nutrients in the right proportions. Developed by Dennis Wong, the creator of the 2Hr Aquarist system, this fertilizer provides the same vigorous plant growth expected from EI dosing - but with the ease, stability, and accuracy that professional aquascapers demand.

With APT Estimative Index, you’ll witness a dramatic increase in plant health, coloration, and vitality - achieving the vibrant, layered, and lush aquascape aesthetics Dutch-style tanks are famous for.