2HR Aquarist APT Estimative Index

2HR Aquarist APT Estimative Index 200Ml, 300 ml & 500ml:

This modified estimative index formula is specifically calibrated for nutrient hungry 'Dutch Style'
Tanks with plants that prefer richer water column dosing in co2- rich environments.
A boldly concentrated ratio of macro NPK, micro and trace elements for deeper greens, richer reds and superior growth.