This Aqueon 20HEX LED Aquarium Kit includes everything you will need to establish and maintain a thriving aquarium in your home. This comprehensive kit features cool white LED lights that actually highlight the natural colors of fish. Meanwhile, its six-sided design makes this aquarium an easy fit in smaller areas. Features: Complete Starter Kit Includes: 20HEX Glass Aquarium Low Profile LED Hood QuietFlow Power Filtration Submersible Preset heater Premium Fish Hood Water Conditioner Thermometer Fish Net Set-up and Care Guide Intended For: Freshwater Fish Material: Glass Color: Clear, Black Size: 20 HEX Instructions: Only keep aquarium lights on for 8-10 hours during the day, then turn off at night. Only change 25 percent of the water once per month. Size: 20 Gal.