APT E / Apt Estimative Index 2 Hr Aquarist

With the 2HR AQUARIST APT ESTIMATIVE INDEX, the famous nutrient dosing approach pioneered by Tom Barr is now available in a ready-to-use concentrate that removes the guesswork from trying to recreate this powerful and sometimes elusive formula.

The key here is the concentrate of this formula. Just 5ML per 100 liters adds the following nutrients

• 6 PPM Nitrogen
• 1.5 PPM Phosphorus
• 6 PPM Potassium
• 0.16 PPM Iron

And additional amount of

• Boron
• Copper
• Manganese
• Magnesium
• Molybdenum & Zinc

Dosage: Dose 5ml per 100L 3 times per week or 2ml per 100L daily