Koller Products 1-Gallon Hex BettaTank with LED Lighting Energy-efficient LED lighting with 7 dazzling color choices to brightly illuminate your fish; choose daylight white, blue, green, amber, aqua, purple, or red Includes built-in light timer, set your LED light to come on at the same time every day, timer enables you to select light settings of 2 Hours, 4 Hours or Continuous On easily with a flick of your finger Made of impact-resistant plastic with crystal-clear clarity so good that most think it's made of glass plus one-piece construction providing superior strength and durability, unlike glass tanks glued together with silicone, this trendy shaped tank puts to rest any worries or concerns about possible leaks Easy to set up and maintain, this stylish fish tank will look good wherever you place it; Dimensions: 7.8"L x 7.8"W x 8"H Takes 2 AA batteries (not included); optional Hawkeye 5V Power Adapter (AQ51000) enables light to be plugged into electrical outlet, available online As we update our aquariums and add new features, the fish tank you receive may have a different part than what is pictured here. We're sorry for this, please contact us at customercare@kollerproducts.com and we will make it right with you. Note: Lid is not supposed to fit snug as it will create a vacuum if it does, it is supposed to fit loose