Betta Driftwood pieces are suitable for a wide range of freshwater aquariums and aquascapes. You can use them to decorate/scape your aquarium by attaching plants such as Java Fern and Anubias. A lot of fish such as Bristlenose and other catfish, plus Shrimps and Snails like to graze and make their homes in amongst the pieces. Shapes can vary, approximately 10 to 40cm per kg. It is recommended that you soak this wood in clean water before use.