Spirulina Algae Culture Sources
Spirulina seed suppliers are critical to the farming ecosystem. Be thankful for their work and understand that they are shipping a living organism they care about.
Below are suppliers I have used in the last decade, but a simple google search can help the international people get in contact with the nearest farmer 👩🌾.
I would highly recommend you buy a nutrient kit with your Spirulina.
Algae Research Supply has been a consistent source of seed for thousands of farmers. They have affordable and complete systems available: