Harbour is conceptualised when thinking about how fishes can be safely and conveniently placed when cleaning the fish tank. With Harbour, there is no need to take fish out of the tank. Essentially, this fish tank is designed with two compartments – the main tank and a smaller tank area. When cleaning the tank, simply tilt the tank and allow the fish to be contained in the smaller tank. The rest of the water in the main tank can be easily poured out without affecting the fish.