Tetra Crescent Kit features a unique, 5 gallon, curved-front aquarium for unobstructed viewing. The seamless aquarium is illuminated by energy-efficient, bright white LEDs hidden inside the low-profile black cover. The kit includes the Whisper Internal Power Filter with a medium Whisper Bio-Bag Filter Cartridge. Perfect for a kitchen, bedroom, living room or dorm room, this aquarium is appropriate for keeping one goldfish or up to three community tropical fish. Small aquariums are a great way to get started in the freshwater fish keeping hobby, and with any new hobby involving living creatures, it is always best to learn as much as you can. When buying fish, ask your retailer for guidance in choosing the right fish for your size aquarium.