5cm-6cm-7cm Large Moss Balls Huge Giant Series: Kokedama Large Moss Ball for Betta Fish Aquarium Plants Marimo PetcoLarge moss balls creates a good amount of oxygen bubbles which are the perfect fit for betta fish. Giant: >5cm Giant+>6cm Giant++>7cm Sold Out Giant+++>8cm Sold Out Giant series price go up due to stock out. 7cm all gone, 8cm all gone The package came with a manual (important) on how to adapt to your aquarium with harmony. DO NOT FLUSH IT. IT WILL BREAK AND SPLIT. GENTLY! 100% Real and Live Guaranteed Moss Artistry Moss Ball can survive in shadows,