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

*in terms of total soluble elemental fertiliser per ml.
^in terms of the amount of potassium per ml.

APT 1 replicates APT 3’s winning formula without nitrates and phosphates. This gives maximum algae control for new tanks (we recommend all tanks to start with APT 1 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)