Our PPS-Pro Fertilizer Pack … Just Mix & Dose

It’s ready to go…our new PPS-Pro Fert Pack is everything you need to get started with the Perpetual Preservation System (PPS) method of fertilization. The PPS Pro method is a convenient, low maintenance method of fertilizing your planted tank.

Our PPS-Pro Fert Pack includes:

  • Two 500mL Fertilizer Dispensing Bottles
  • Plantex CSM+B (trace elements)
  • Potassium Nitrate KNO3
  • Mono Potassium Phosphate KH2PO4
  • Potassium Sulfate K2SO4
  • Magnesium Sulfate MgSO4

What you will need to get started…

  • our PPS-Pro fertilizer package
  • distilled or RO water
  • a digital scale

Preparing the fert mix in the 500mL dosing bottles…

The following solution recipe is based on the use of two 500mL bottles. For alternative bottle sizes, please download the PPS-Pro calculator to determine the correct solution recipe. Before starting, we recommend to boil the plastic bottles to sanitize them.

Step 1.

Bottle #1 – use your digital scale to weigh the following ferts, then place dry contents in bottle:

  • K2SO4 – 29 grams
  • KNO3 – 33 grams
  • KH2PO4 – 3 grams
  • MgSO4 – 20 grams

Step 2.

Bottle #2 – use your digital scale to weigh the following ferts, then place dry contents in bottle:

  • Plantex CSM+B – 40 grams

Step 3.

Fill both bottles with distilled or reverse osmosis (RO) water, up to the 500mL water level line. Screw on caps tightly and shake well. Let the mixture sit over night until dissolved completely.

How to dose the mixture…

The recommended dosing quantity is 1 mL of each bottle per every 10 gallons or 40 litres of aquarium water. Dose daily, prior to your aquarium lights turning on.

Dosing examples:

  • 5 gal / 20 litre –> 10 drops
  • 10 gal / 40 litre –> 1 mL
  • 50 gal / 200 litre –> 5 mL
  • 100 gal / 400 litre –> 10 mL

Understanding Aquarium Fertilizer & Planted Tank Fertilization Methods and Calculators


Fertilizer Dosing Methods:

Fertilizer Dosing Calculator:


When to Fertilize, and Why Fertilize
Fertilize planted tanks that implement carbon dioxide (CO2) injection, pressurized or DIY, combined with moderate to high lighting. Macro and micro nutrients are essential to proper plant growth, coloration, and survival.

How to Fertilize
There are two major Fertilization Methods to follow – PPS (Perpetual Preservation System) and EI (Estimative Index). To properly fertilize your planted tank, you will need to research and choose a method that fits your needs and tank conditions. Always be sure to carefully observe the plant conditions in you tank to avoid over or under fertilizing.

How to Dose the Fertilizer
There are several methods you can use to get the ferts in your aquarium.

  • Measure out the predetermined amount of dry ferts and place the dry fert(s) directly into the aquarium water.
  • Mix the predetermined amount with a little bit of aquarium water in a container until it dissolves, and then pour the solution into the aquarium.
  • Check out our detailed PPS-Pro dosing instructions.


Macros / Macronutrients (NPK) – there are three major macronutrients: Nitrogen (N), Phosphorous (P), and Potassium (K).

Micros / Micronutrients / Trace Elements – the most popular include: Iron, Boron, Manganese, Plantex, Miller Microplex.

Nitrogen (N) – the most common source is Potassium Nitrate (KNO3). It is the staple nutrient of all plants. It helps plants produce enzymes, proteins, and amino acids. A lack of nitrogen halts plant growth and promotes decay.

Phosphorous (P) – the most common source is Mono Potassium Phosphate (KH2PO4). Assists in plant DNA and RNA replication, and growth related processes. A lack of Phosphorous can result in the decreased ability for plants to uptake or absorb nutrients, leading to excess nutrient in the water and potential algae conditions.

Potassium (K) – potassium is found in compounds such as KNO3 and KH2PO4. For tanks with potassium deficiencies Potassium Sulfate (K2SO4) provides the element of potassium. Potassium plays a very important role in photosynthesis optimization, while keeping plant processes and production in a constant state of activity.