2Hr Aquarist APT Zero

Award-winning aquascapers' choice.

Lean but powerful. The 2Hr Aquarist APT Zero All-in-one Aquarium Fertilizer is specially designed for tanks with significant fishload and for hobbyists looking to replicate the renowned ADA dosing system. It contains the full potency of APT Complete, but without nitrates and phosphates. This leaner dosing approach provides maximum algae control.

Dose 5ml per 100L four times a week or 3ml per 100L daily. FAQ here.

Each 5ml per 100L dose adds 3.8ppm Potassium (K), 0.05ppm Iron (Fe), 0.5ppm Magnesium (Mg) and additional amounts of Boron (B), Copper (Cu), Manganese (Mn), Molybdenum (Mo) and Zinc (Zn).

Should you use APT Complete, APT Zero or Estimative Index?

APT Usage Guide 


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When performance matters

Above: a fast-growing 'farm tank' using APT Complete. Aquasoil is used as substrate, paired with additional root tabs for faster growth of 'blood vomit' and the red Eriocaulon quinquangulare.

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Unlock the full potential of your planted tank today!

Above: a slower-growing nature-style diorama using APT Complete. 

Capstone Ratio