Adding colourful gravel to your betta aquarium is an excellent way to embellish it with a rich and appealing touch of texture and visual flair. It's also a practical way to secure accessories such as ornaments. Made of safe and non-toxic epoxy, this gravel will not affect water chemistry or harm your betta. Colour: White. Other colours available: -12370 Marina Betta Black epoxy gravel, 240 g (8.5 oz) -12371 Marina Betta Red epoxy gravel, 240 g (8.5 oz) -12372 Marina Betta Brown epoxy gravel, 240 g (8.5 oz) -12373 Marina Betta Pink epoxy gravel, 240 g (8.5 oz) -12374 Marina Betta Blue epoxy gravel, 240 g (8.5 oz)