The GloFish® 3.5 Gallon Aquarium Kit contains everything you need to experience the brilliant color of GloFish® fluorescent fish. Perfect for beginners and hobbyists alike, this complete kit features an eye-catching LED lighting system and a Tetra® Whisper® Filter with a small Tetra® BIO-Bag® Filter Cartridge to catch debris and waste and help you create a healthy environment for your fluorescent fish. The plastic hood includes a convenient feeding hole, and the kit comes with samples of Tetra® AquaSafe® water conditioner and GloFish® Special Flake Food, so you can begin using your tank right away. The aquarium is brought to vibrant life with blue LEDs that make GloFish® décor and fish fluoresce even more brilliantly. Switch between Sunlight and Moonlight mode to experience the different lighting effects. GloFish® brand offers easy setup and maintenance and professional support, making aquarium keeping simple for all ages and skill levels. For this product, one male betta or one female betta is recommended. Transform your GloFish® aquarium kit into a complete underwater fluorescent experience with GloFish® plants and décor (sold separately).