This is salt for MARINE algae.
Our culture salts are a modification of the media from Aiba, S. & Ogawa, T. (1977) and Schlösser (1994). It uses NaNO3 (sodium nitrate) and NaPO4 (sodium phosphate) as the nitrogen and phosphorus sources to maintain a favorable environment to keep your spirulina happy and healthy!
This media kit includes only salts, if you need more than just culture salts, consider one of our many Culturing Kits which contains everything you need to grow a laboratory-grade culture at home or at your desk, or Complete Media Kit (salts + nutrients) to freshen up your algae's environment.
TO GROW ALGAE YOU WILL NEED: A Marine starting culture, chlorine-free water, a growing vessel (such as a 10-gallon fish tank), air supply (small air pump, not the band, but if you could get the band to sing to the culture- that would be amazing!).