Compact and stylish, this Aqua Culture 1 gallon kit is ideal for keeping your favorite betta. Featuring energy-efficient LED lighting with seven dazzling colors (amber, aqua, blue, green, purple, red, and white), brightly illuminating your fish. Powered by two AAA batteries (not included). Optional 5-volt power adapter (AQ51000) enables you to plug LED light into an electrical outlet, saving on battery costs. Gravel and decor sold separately.