The Fluval View's curved acrylic front provides a beatiful, unobstructed view of the inhabitants inside. This unique, 4 gallon aquarium includes a powerful pump, filtration system and LED lighting system for a tank its size - making it ideal as a desktop system. Bright daytime and blue nightime LEDs provide a complete, low-wattage, 24-hour lighting system. Hidden filtration system uses a full circulation pump to power full 3-stage filtration. Carbon and ceramic cartridges are included.