and if you don't want to spend $250, the DIY version seems pretty easy, too: https://www.greenhousetoday.com/growing-spirulina/ https://www.greenhousetoday.com/

and if you don't want to spend $250, the DIY version seems pretty easy, too: https://www.greenhousetoday.com/growing-spirulina/ https://www.greenhousetoday.com/growing-spirulina/