Introduction: MOS - Algae Stack

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Here, We have chosen to grow Spirulina Plantesis because of multiple reasons. The Spirulina Plantesis is considerate as a Super Food, its popularity as an alternative source of proteins makes it a good candidate to replace usual, very expensive and unsustainable source of food.

The composition of dried Spirulina Plantesis:

  • 65% of Proteins.
  • 15-20% of Carbohydrates.
  • 3-5% amino acids.

Its high content on digestible proteins enhances the idea that Spirulina Plantesis can be the future of food as a seaweed. But what can we eat in the Spirulina culture? Its Biomass, which is the amount of solid content created by photosynthesis.

To grow Spirulina Plantesis you need to understand the basis of the photosynthesis phenomenon. This micro-algae is full of chlorophyll which is a protein pigment, by fixing the CO2 and the energy of the sun, it creates the desired edible biomass. But how can we let occurs this chemical bioreaction?

By recreating the natural conditions. That why it's important to use light sources which mimic the energy of the sun and an air pump which provides enough carbon dioxide to the Spirulina to stimulates it. To mimic the source of light you can put the spirulina culture near a window to save energy, it will absorb both light and temperature from the sun. But you can also use artificial light - Preference warm light, the Spirulina absorbs easier the warm wavelength than colder ones.

Best conditions:

  • Optimal temperature for growth: 35°C (Under 20°C - Dormant / Dies at 40°C)
  • 16h of Bright light + warmth
  • pH level: 10.5
  • Agitation is mostly to increase exposure to light, less for aeration

Step 1: Building the Stack

Material list:

  • 1l bottle of freshwater
  • Tubing system
  • Led lights or warm lights
  • French press
  • Spirulina Plantesis culture
  • Nutrients (Bicarbonate Sodium + Phosphorus)
  • Timer
  • "T" connectors
  • Air Pump


  1. Build the frame of the algae stack - Here we chose an IKEA shelf to simplify the structure of the system.
  2. Choose and place the number of medium you need to put in the stack
  3. Install the air pump in the stack and link it to the bottles via PVC tubes - If you want multiple media you will need to divide the tube to provide air to all the bottles.
  4. Put the light system next to the bottles of Spirulina to provide warmth and light to encourage the photosynthesis reaction.

Step 2: The Beginning of the Algae Culture

To begin the culture of Spirulina plantesis, we need first to get the basic components which are:

  • Spirulina Plantesis culture
  • Bicarbonate Sodium - Carbonate Sodium
  • Iron
  • Other Nutrients ( Phosphate - Nitrate)

If the conditions are optimal you will be able to harvest the Spirulina after 2 weeks - It's the time it needs to absorbs the nutrients and let occurs the photosynthesis reaction. After those few weeks, you will be able to harvest the biomass from the spirulina every 2 days (depending on the size of the medium).

Step 3: Few Recipes With the Micro Algae

Growing Spirulina Plantesis at home is the first thing but how to eat this superfood?

Here we provide some non-exhaustive recipes which are full of nutrients and will provide at least half of the nutrient values you need every day.

1- Spirulina green juice


  • x1 Cucumber
  • x2 Apples
  • x1 Small lemon or lime
  • x1 Teaspoon Spirulina powder

2- Spirulina Seasoning Salt


  • x4 Tablespoons nutritional yeast
  • x1 Teaspoon Spirulina powder
  • x1/4 Teaspoon sea salt
  • x1/8 Teaspoon cayenne pepper or to taste