Check the listing for details. Tetra Half Moon 1 Gallon Betta Kit with LED Lighting. Condition: New. Listed at 19.99 USD. The Tetra LED Half Moon Betta Kit is a beautiful betta environment in a cool half moon shape that will be a great addition to any small space at home or at the office. Convenient feeding holeVersatile LED lights that fit above or beneath tankAA battery operated and USB compatibleMeasure approx. 4.56 x 9.13 x 9.88 inches This tank features a convenient feeding hole and LED lighting that can either be lit from the top of the tank or moved to light from beneath, whichever you prefer. The LED lights are powered by three AA batteries (not included) and can also be powered using a micro USB B Cable with AC adapter (not included) to plug the unit into any outlet. With plenty of versatility with lighting options and a unique style, this great half moon LED kit is perfect for your betta fish!