1, stable water quality: the greatest advantage of medical stone is stable water quality, with it can make the water body more clear, but also can extend the time of water change. In addition, Maifanshi can release trace elements and minerals, properly regulate the hardness of the water body, which is also very helpful to the health of fish.
2. Adsorption of harmful substances: The medical stone itself can adsorb some harmful substances, such as cadmium, mercury, arsenic, lead, and so on. At the same time, it can also adsorb harmful bacteria. The adsorption rate of Escherichia coli even reaches 95%, thus reducing the possibility of fish getting sick. It is very suitable to be placed in the fish tank.
1. Sulfur-containing element: Medical stone itself is a kind of volcanic rock, and in the process of volcanic eruption, it absorbs various minerals, including some harmful ones, such as sulfur element, which will slowly volatilize when it meets water, and even have a peculiar smell. So there is a certain risk in the fish tank.
2. Release of harmful substances: It is true that medical stone itself has the ability to adsorb, but there is an upper limit for adsorption. Once it reaches the saturation level, it will no longer adsorb, but will release these substances, which is very harmful to the health of fish. Therefore, it is usually replaced in half a year and can not be used all the time.
