2Hr Aquarist APT Zero 1 100ml

Tackle the most demanding plants, or just enjoy everyday magic in new tanks with aquasoil, and aquariums with more fish. The easiest way to unlock the true potential of your planted tank today.

The 2Hr Aquarist All-In-One Fertilizer.
Richer Colors, Less Algae. Better Results.

Dose 3ml per 100L daily.


Our Starter 100ml Pack comes with a calibrated dosing dropper.
Lasts ~3mths for an 8 Gal / 30L tank


APT 1 / ZERO replicates APT 3's winning formula without nitrates and phosphates. This gives maximum algae control for new tanks (and we recommend all tanks to start with APT 1/ Zero for the first 1-3 months), and optimal long term performance for tanks with more fish. This is because fish food and waste already supply phosphates and nitrates.


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)