APT 1 offers a refined version of APT 3’s proven formula, excluding nitrates and phosphates for maximum algae control in new tanks. Perfect for the first 1-3 months of tank setup, APT 1 is also ideal for long-term fertilization in tanks with heavy fish loads, low plant density, or low-demand plant species. Unlike conventional pre-2000s fertilizers designed for simpler plants, APT 1 is engineered for modern aquascaping, boasting 3X the concentration for demanding species and 2X more potassium for enhanced plant coloration. Achieve vibrant, healthy growth with this advanced, targeted fertilizer.
Instructions
- Dose 3ml per 26 gallons / 100L daily.
- Our Standard 300ml Pack comes with a calibrated pump. 1ml per press.
- 300 ml Lasts about 3 months for a 30 gallon / 115L tank.
More product information, and a dosing calculator, can be found here: https://www.2hraquarist.com/products/apt1
Details
APT 1/Zero, Liquid inorganic macronutrient fertiliser.
NPK (Mg) fertiliser with micronutrients and trace amounts of Boron (B), Copper (Cu), Manganese (Mn), Molybdenum (Mo) and Zinc (Zn).
0 – 0 – 7 (+1.4)
- 7% Total Potassium oxide (K2O)
- 1.4% Magnesium oxide (MgO)
- 0.09% Total Iron chelated by EDTA, DTPA and EDDHA.
- All nutrients are completely water soluble.
Ingredients
Potassium sulphate (CMC1 CAS n°7778-80-5) Potassium chloride (CMC1 CAS n°7447-40-7) Magnesium sulphate (CMC1 CAS n°7487-88-9)






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