There are a variety of colors and patterns, but crayfish are not divided into species by color, and some of the same species may be different colors due to hair color, feeding, and growing environment.

I remember that I have seen online introduction of Europe and the United States of a kind of sky, look at the picture can reach more than 30cm, the introduction of life expectancy up to 10-20 years, I have not seen than this big. Domestic more common, large crayfish:

1. Australian small green dragon, the largest can reach the level of food, 10 + seed shrimp Taobao 25 yuan or so, the price is cheaper;

2. Artificial sky, can reach 18cm or so, very ornamental, purebred 2 + juvenile shrimp 18-22,3 + juvenile shrimp 35 or more, the price is more expensive;

3. Wolf shrimp, Golden giant hand, etc.: did not play, the maximum individual length and price is not clear;

4. three small strong (orange ao, blue ao, white ao), strong vitality, it is said that there are examples of growth to 15cm or so, suitable for novice practitioners, the Northeast of the physical store a few dollars a;

5. spicy crayfish (Crayfish), vitality is very strong, the largest is that you have eaten spicy crayfish inside the The largest, suitable for super lazy novice practitioners, buy things by the pound, die without heartache.