First of all, betta still likes acidic water. When decorating and selecting materials, we must choose those materials that can affect the water quality and are weakly acidic, such as heavy wood and olive leaves.

Elemene leaves: This kind of leaves can be said to be exclusive to fighting fish, and it is an essential material for people who basically raise fighting fish. Elemene leaves will release tannic acid, which can soften the acidified water quality and create the water quality that betta fish likes.