How to Create a Two-Reagent Fertilizer Recipe in Samomes?

This guide will show you how to create your own two-component fertilizer recipe with a volume of 500 ml for a 120 L aquarium, using potassium nitrate and potassium monophosphate.

We will configure concentrations so that 1 ml of finished fertilizer increases nitrate content in the aquarium by 1 mg/L, and phosphate — by 0.1 mg/L. This ratio will provide optimal macroelement balance for healthy plant growth.

Step-by-Step Guide

Step 1: Open the Recipe Creation Form

In the Samomes main menu, select the "Recipes" section.

Click the "ADD" button and the New Recipe creation form will open.

Step 2: Select Reagents

In the "Reagents" field in the dropdown list, select two main reagents "Potassium nitrate" (potassium saltpeter) and "Potassium monophosphate".
- Water - H2O is automatically selected as the solvent, since most fertilizers are made in liquid form.

Click on the information icon next to the reagent to view its composition. Make sure the selected reagents contain the elements you need.

Step 3: Calculate Reagent Masses

Click on the "Calculate reagent masses" button.

Select aquarium:

If you've already created an aquarium in the system, select it from the list
If not, enter the water volume manually - 120 L.

Enter specific concentration:

In the NO3 field, enter "1" so that 1 ml of fertilizer increases nitrate concentration by 1 mg/L in a 120L aquarium.

In the PO4 field, enter "0.1" so that 1 ml of fertilizer increases phosphate concentration by 0.1 mg/L in a 120L aquarium.

Click the "Save" button, and the window will close.

The system will automatically calculate the required reagent mass:

KNO3 mass - 97.8 g.
KH2PO4 mass - 8.6 g.

Step 4: Save the Recipe

Optionally, you can change the name and add a description. In our example, enter "NPK" in the Name field.
Click the "SAVE" button. Your Recipe will appear in the Recipes list and in the Dosing section.