There is an old saying in China, says, "Every year have enough thing to spend, or year by year enough." From of old, people see fish as mascot, so there are a lot of people like fish feeding and fish appreciating. However, the old ways of fish feeding is complicated, comparatively speaking, for you need to buy the tools, the container, change water, feed them and clean the container and so on. There are so many things need to deal with, so it makes a lot of people keep away from fish feeding. Now, with the rapid development of technique, a new kind of product is coming into our daily life, that is the solid oxygen ball.

Introduction:
This kind of product has many kinds, can be used as present send to friends; also can be put in the wardrobe. The solid oxygen ball is just been selling in the market. It can be sell in supermarket, stores, restaurant, hotel, fast food shop, market and so on.

Theory
The solid oxygen ball and the nutritive medium are the most important element of the product. The solid oxygen ball can release oxygen slowly, and can exchange the impurities into the food the fishes need. The nutritive medium contains a lot of microelement, so it can make the fish much stronger and supply the nutrition fishes need. In the normal condition, the solid oxygen ball can be used 3-6 months. After the solid oxygen ball is used out, it can refill again.

The solid oxygen ball's usage and keeping

The solid oxygen ball is environment protect product, it will not pollute the environment. You can choose the colors you like. It is half solid, strength low, so you should pay attention to them when keeping and transporting. You had better keep them above 0 degree Centigrade, in case been frozen.

It can be used together with crystal soil, you should put them in the bottom, and it can release oxygen into the root of the plants, which makes the flower grow well.