The optimal growth temperature of Spirulina is 35-37℃ with good heat resistance. The optimal growth pH range is 3-11.0, when the pH is higher than 11.0 will be unfavorable.

In the case of normal nutrition and temperature, light becomes an important factor affecting the growth of spirulina. In outdoor culture, the light source is mainly the sun;

In the experiment, using a cool-white light source, the light intensity required for growth and culture is about 3700-4000 lx, and about 1100 lx for maintenance culture. The growth of spirulina is not only affected by the light intensity, but also reacts differently due to the different color values of the light.

Due to the different amounts of phycoerythrin and phycocyanin in the body, it shows different body colors, such as blue-green, yellow-green, or purple-red. And has a slender transverse septum. It is a simple reproduction of prokaryotic organisms and can divide directly.

Extended information:

Growing in a variety of freshwater and seawater, often planktonic growth in the middle and low-tide zone of seawater or attached to other algae and attachments to form a greenish-green The greenish-green color of the covering is often found on other algae and attachments.

The world can naturally grow spirulina four lakes, Lake Chad in Africa, Mexico's Lake Texcoco, China's Yunnan Lijiang Chenghai Lake and Ordos Hama Taikai Lake. Has been artificially cultivated and large-scale mechanized production.

In the selection and breeding of algae species to select and breed high-quality and high-yield algae species is an important part of the cultivation process, in the process of cultivation, but also to domesticate and rejuvenate the algae species, in order to prevent its degradation and mutation.