2HR Aquarist APT E / ESTIMATIVE INDEX

With 2HR Aquarist APT-EI, the nutrient dosing developed by Tom Barr is now available in a ready-to-use concentrate that takes the guesswork out of recreating this powerful and sometimes mysterious formula.

Why choose it?
APT E / ESTIMATIVE INDEX offers an easy approach to putting Tom Barr's fertilisation system into practice, with adaptations based on our exclusive Capstone formula.
Use it to enjoy the true EI experience of unparalleled growth speed through unlimited nutrition.

Composition:
Liquid inorganic macronutrient fertilizer
NPK fertilizer (Mg) with micronutrients and traces of boron (B), copper (Cu), manganese (Mn), molybdenum (Mo) and zinc (Zn).
1.6-1.7-8.5 (+1.6)

1.6 % total nitrogen (N)
- 1.6% nitric nitrogen
1.7% Total phosphorus pentoxide (P2O5)
8.5% Total potassium oxide (K2O)
1.6% Magnesium oxide (MgO)
0.18% Total iron chelated by EDTA, DTPA and EDDHA.
All nutrients are fully water soluble.

Ingredients : 
Potassium sulphate (CMC1 CAS n°7778-80-5)
Potassium chloride (CMC1 CAS No. 7447-40-7)
Magnesium nitrate (CMC1 CAS No. 10377-60-3)
Magnesium sulphate (CMC1 CAS No. 7487-88-9)
Potassium phosphate (CMC1 CAS No. 7778-77-0