Marimo(マリも) is the only round green seaweed in the world, which grows in the northern hemisphere and is a monument to Ahan Lake, a famous freshwater lake in Hokkaido, Japan. Marimo was first introduced in the world history in the book Plant Species published by Carl vonLinne in 1753. Then in 1843, F.T.Kutzing published the spherical green algae produced in Australian lakes. Therefore, it is recorded as a new chlorophytaceae. Marimo of Lake Ahan in Japan was discovered by Takashi Kawakami in 1897. Because of its round shape, it is named marimo (seaweed ball). Soon after, 192 1 was designated as a national nature reserve by Japan. The newborn Marimo is very small. One-year-old Marimo is only 0.3mm, and usually grows at the rate of 5mm every year. The largest Marimo ever discovered in the world is 30cm in diameter, which is very spectacular. The reproductive process of marimo: 1. Birth: spore formation and germination II. Stretching: to grow in the form of filaments. Dense: Filaments 4 begin to bind. Spheroidization: round algae balls 5 are formed. Aggregation: Sphere community begins to form 6. Decentralization: enlargement and hollowing out: marimo's growth process: very slow, so people who raise marimo should be very slow. It takes a relatively long time for marimo to grow into a circle. Filamentous branches growing from the whole body are constantly winding and splitting, making their diameters gradually increase. Generally speaking, marimo grows at a speed of 5 mm per year, but if carbon dioxide, fertilizer, brightness and minerals are sufficient and appropriate, marimo can grow at a better speed. In Japan, some algae culture enthusiasts study different waters to observe the rapid growth of marimo. Marimo, who lives at the bottom of Lake Ahan, lives in groups. Although the number is small, it looks very spectacular. As for the lovely marimo, there is also a beautiful legend among Japanese people, such as the Cowherd and the Weaver Girl. According to legend, in ancient times, in a small village near Lake Ahan in Japan, there was a beautiful woman who was the daughter of a chief. The chief wants his daughter to marry a man, but she has fallen in love with a soldier from another ordinary tribe. The chief didn't allow him to force his daughter to marry the person he liked. On the wedding night, the chief's daughter heard the grass flute played by the samurai in the distance, followed the flute and came to Ahan Lake. In the faint moonlight, they rowed into the lake in a wooden boat, agreed to become attached to each other in the afterlife, and then jumped into the lake in their hometown together. The chiefs and villagers felt their affection and turned to pray for their eternal happiness. The soul they fell in love with changed from their name to Marimo in the lake, and they continued their love happily at the bottom of Lake Ahan until their death. From then on, men and women who love each other will be very happy as long as they come to Lake Ahan to pray. Marimo, the green algae ball, represents the unswerving love and persistent efforts for happiness. People believe that Marimo can bring happiness, and it will turn farmers' wishes into beliefs until they come true. Every day, you can recite a happy spell to the little green algae ball in your mind: Mari, Mari, Marimo…… .............................................................................................................................................. Sunny, floating, floating, floating, floating, sinking, falling in love. Because of MARIMO's inherent meaning of "happiness", the computer software company launched Marimo's cultivation game in time, so that every OL eager for happiness can see his happiness on his desk. As long as you feed Marimo and talk to him, he will grow into balls of different shapes such as happiness and love, and his life will last for about 3 months. Marimo's life is divided into four aspects: baby, child, adult and old age: happiness, love, health and wealth. Marimo can be given to lovers, lovers, friends and guests. In Taiwan Province province, wedding companies use Marimo to help newlyweds return it to those who attended their own weddings. Because there are many varieties of Marimo, each one has a different meaning, so we can give them a happy spell according to everyone's needs. Beauty companies use Marimo for customers, and graduate students can give each other gifts. I hope everyone has a good prospect or something ~ Marimo culture method 1. Marimo is a freshwater algae species in green algae. It can be cultivated with clean tap water, and fresh water can be changed once a week or so. The water temperature must be kept below 25 degrees Celsius. The lower the water temperature, the more helpful it is for the growth of Marimo. 2.Marimo should absolutely avoid direct sunlight during feeding. Indoor light or any artificial light source can make Marimo grow normally without worrying about its lack of sunlight for photosynthesis. 3.Marimo will keep growing every day under your careful feeding (the speed is about 5MM a year). During the growth process, branchlets will grow around the algae ball. As long as you pay more love when changing clean water and gently smooth the branchlet algae along the algae ball, Marimo will become a natural spherical state. 4. When Marimo grows to a diameter of about 5CM, please gently squeeze out the water in Marimo with your fingers every time you change the fresh water, so that it can fully absorb the fresh water changed every time, so as to avoid the image of its growth or withering caused by the accumulation of sewage. 5. In short, the assimilation of carbonic acid produced by Marimo after absorbing carbon dioxide from water and sunlight is not much different from other hydroponic plants. As long as you pay more love and care, your Marimo will grow up healthily and happily, and can gently replace its happy magnetic field for you and your loved ones in daily life.