- Made of natural raw material
- Contain numerous trace elements which are essential to plant growth
- Transform water into weak acid that creates an ideal environment for fish spawn
- Prevent the growth of algae
Slowly and steadily changes the water condition to be slightly acid and soft which can help prevent the growth of alga and induce spawning.
Could be combined in use with other filter media. It should be placed in the last position of the filtering process to achieve the best effect.