Algae need nutrients and light to grow. It is recommended as soon as your algae are delivered take it out of the package and slightly open the cap for gas exchange. Place under fluorescent light for 16 hours at 2500 lux (~2 inches away from a 25-watt bulb). Then change the lighting schedule to 14 hours on, 10 hours off.
Nutrients should be added every 4 days. Nutrients are available in our store. Depending on shipping times you may need to add nutrients right away. It is up to you to take care of the algae and keep it growing.