Top Fin® Custom Colorflow™ Aquarium with 7 Color-Changing LEDs. The Top Fin® Custom Colorflow™ Aquarium Starter Kit is the ultimate all-in-one feature piece, creating a beautiful and colorful world for your fish while transforming any room. Available in two versatile capacities, including a compact 3 U.S. Gallon (approx. 13.4 in L x 6.85 in W x 9.01 in H) and a spacious 5 U.S. Gallon tank (approx. 16 in L x 8.58 in W x 11.2 in H), this kit is designed for superior pet care and style. Its dazzling Custom Colorflow™ system features 7 brilliant color-changing LEDs that allow you to customize the mood of your tank instantly. Furthermore, the included integrated filter system incorporates Hydrochange Technology, which makes routine water changes remarkably quick, easy, and mess-free, ensuring consistent, high-quality water for the continued good health of your compatible fish. For a thriving aquatic display, simply maintain the right quantity of fish and provide them daily with the appropriate type and amount of food.