There are some other advantages:
- Acidifying effect: wood lowers the pH of your aquarium
- It is healthy for fish with a “cellulose requirement”
- It is a handy outlet for fish eggs
- It offers many shelter options for fish (and shrimp)
- It is a good bonding base for Epiphytes such as Java fern or moss
That why you need wood in your freshwater aquarium. Think about how beautiful it brings to your tank and some advantages above.
Source by aquascaping-blog