COMPLETE FILTRATION: Powerful internal power filter cleans and purifies aquarium water at a flow rate of 25 gallon per hour, effectively removing fish waste and debris. Compatible with Koller XS replacement cartridges VIVID LED LIGHTING: Enhance your viewing experience with 4 adjustable lighting modes: Daylight White, Warm white, Blue, and Blue-White. Perfect for creating the ideal ambiance for your fish and space QUIET OPERATION: Designed for silent performance, ensuring a peaceful environment at home or in the office without compromising functionality CRYSTAL-CLEAR VIEWING: Made from durable, impact-resistant plastic with a crystal-like clarity for an elegant, leak-proof display. Clarity so good that people think it is glass. Perfect for showcasing betta fish and other tropical species QUICK EASY SETUP: Compact and stylish, this desktop aquarium is easy to install and maintain, making it an affordable choice for beginners and experienced fish enthusiasts alike DIMENSIONS: 14.75L x 10.25W x 9.50H inches