fish tank volcano stone

1. Volcanic rock is formed by volcanic eruptions for hundreds of millions of years, with high hardness and not easy to pulverize. It can be washed and used repeatedly. 2. Volcanic rock has a large specific surface area and many pores, which is conducive to the reproduction of nitrifying bacteria and purifies water quality. 3. The pores of volcanic rock are dense and uniform, and the porous structure has strong adsorption capacity, which can effectively absorb harmful substances and improve water quality.

1. The unique water activity of volcanic rock can increase the content of oxygen ions and stabilize water quality. 2. The bright colors of volcanic stones have a significant color-attracting effect on parrots, red horses, arhats and many other ornamental fish. 3. The porous structure can absorb harmful bacteria in the water, promote the cell metabolism of fish, and optimize growth.

1. The volcanic rock is selected from high-quality raw mineral stones, with many voids, uniform particles, bright colors, and is water-permeable and breathable. 2. Volcanic rock can purify water quality and adjust the pH value of water. 3. Volcanic rock can absorb harmful bacteria in water and promote fish metabolism.