2HR Aquarist APT Zero – Algae-Control Fertilizer for Planted Aquariums
Balanced Plant Nutrition Without Nitrates or Phosphates
Each 5ml per 100L dose adds:
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3.8ppm Potassium (K)
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0.05ppm Iron (Fe)
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0.5ppm Magnesium (Mg)
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Trace amounts of Boron (B), Copper (Cu), Manganese (Mn), Molybdenum (Mo), Zinc (Zn)
Designed to be dosed 4 times a week, giving a weekly total of:
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15.2ppm Potassium (K)
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0.2ppm Iron (Fe)
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1.6ppm Magnesium (Mg)
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Continued trace mineral support
APT Zero delivers a comprehensive, algae-conscious nutrient profile tailored for tanks with more fish and fewer plants, or new tanks with aquasoil (less than 3 months old).
Unlock the True Potential of Your Planted Tank
Tackle the most demanding aquatic plants or simply enjoy vibrant, everyday growth in aquariums with high bioload. APT Zero is the easiest way to unlock the full potential of your planted aquarium while minimizing algae risks.
Recommended Dosage
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5ml per 100L, four times weekly
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Or 3ml per 100L daily
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Includes a calibrated pump for precision dosing
Pack Size
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300ml bottle
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Lasts approximately 3 months for a 115L tank
Which APT Product Is Right for You?
APT Zero – Algae Control Formula
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For tanks with more fish, fewer plants
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Ideal for new tanks (<3 months) using aquasoil
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Zero nitrates and phosphates to maximize algae control
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Full spectrum micronutrients and trace minerals
APT Complete – For High Plant Load Tanks
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Best for tanks with more plants and fewer fish
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Supplies 100% comprehensive macro, micro, and trace nutrients
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Exclusive Capstone Ratio formula encourages stronger growth and richer colours
APT EI – For Advanced Aquascapers
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Designed for Dutch-style and heavily planted tanks
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Supremely concentrated, formulated for aquarists using Estimative Index (EI) methodology
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Precise, high-performance dosing for expert-level growth
Dosage Guide for APT Zero and APT Complete
Focus on your total weekly dose, which is the most important target for plant health. While consistency is more important than precision, uniform nutrient access throughout the week results in better growth and fewer algae outbreaks.
Why Choose 2HR Aquarist APT?
Real Results – Grown the 2HR Way
Aquatic plants grown with APT fertilizers following the 2Hr Way exhibit lush, healthy forms and vibrant colours. The APT line was created because existing products simply didn’t deliver the right balance of nutrients we needed.
