Prepare grow-glass
Take the freshly rinsed grow jar. It should be clean and free of residues.
HELP CENTER
Restart Spirulina Farm
Use the culture saved from your harvest to start your next growth cycle in minutes.
THE RESTART
Four steps. A new cycle.
The restart is particularly easy: You use a small portion of your previous harvest directly as a new starter culture.
Fill with nutrient salt
Add 45 g of nutrient salt to the jar. This is approximately two heaped spoons.
Refill water
Pour in approximately 2.2 L of lukewarm tap water and stir once. The nutrient salt does not need to dissolve completely.
Apply own culture
Add your saved 250–500 ml Spirulina culture. The total amount should be approximately 2.7 L – no more.
FRESH START
New vitality every three months.
Your farm operates as a closed system and does not require a new culture after each harvest. However, for continuous strong growth and a lower risk of contamination, we recommend a fresh, lab-tested starter culture every three months.
Strong & Stable
A fresh culture regularly brings your farm back to peak performance.
Mild & nutrient-rich
Regular fresh starts support flavor, vitality, and reliable yields.
NEXT STEP
Understanding Lights, Battery & Bubbling
Next, learn what the light signals mean and how your farm automatically coordinates daylight, grow light, and battery.
FURTHER QUESTIONS
Questions about the restart
Everything for the sustainable cycle of your farm and the regular renewal of cultivation.
Do I have to keep buying new spirulina cultures?
Technically no. With each harvest, you save about 250–500 ml of your grown culture and use it as a starter for the next batch, along with fresh water and nutrient salt.
Over time, however, an algae culture naturally loses vitality and the risk of unwanted contamination increases. For the best quality, we therefore recommend a fresh restart every three months with a new, laboratory-tested starter culture.