APT Estimative Index 500ml

2hr Aquarist APT CompletePure Power 500 ml is a concentrated nutrient solution based on the Estimative Index (EI) approach, formulated for fast growth in Dutch tanks and high-energy planted setups. Contains NPK, Mg, Fe, and trace elements to saturate water with essential nutrients. Removes dosing guesswork—default dosing eliminates deficiencies. Shrimp-friendly. Highly concentrated—lasts 3× longer than standard products.

Specifications:

• Category: Aquarium Plant Fertilizer

• Brand: 2hr Aquarist

• For: High-energy planted tanks, Dutch setups

• Weight/Size: 500 ml

• Dosing: 5 ml per 100 L, 4× weekly or 3 ml per 100 L daily

Key Features:

• Fast Growth Formula: Ideal for demanding planted species.

• Complete Nutrient Solution: NPK, Mg, Fe, and trace elements.

• Customizable Dosing: Saturates water, removes deficiencies.

• Shrimp Friendly: Safe for invertebrates.

• 3× Savings: Concentrated formula lasts longer.

• EI Based: Pioneered by Tom Barr for maximum growth.

Instructions for Use: Shake well. Dose 5 ml per 100 L four times weekly or 3 ml per 100 L daily. Adjust based on plant response. Store in a cool, dry place. Keep out of reach of children