PawHut Aquarium 13L Glass Fish Tank w/ Filter, LED Lighting, Water Pump Description: - Rainshower-type filter with filter cotton and air supply to keep the tank clean - LED lights with three modes: gradient color, fixed color, and bright white light - 13L capacity for comfortable fish swimming - HD glass provides clear visibility - Ventilation holes in the top cover prevent oxygen deprivation during power outages - Suitable for bettas, guppies, mini parrot fishes, shrimp, goldfish, and similar aquatic pets - Assembly required - Color: White lid and transparent glass - Material: Glass and ABS - Overall dimensions: 30.5H x 29L x 20Wcm - Inside dimensions: 25H x 28L x 19Wcm - Filter tank dimensions: 5H x 18L x 5Wcm - Water pump: 2.5W - Water pump cord length: 1.1m - LED light: 4.5W - LED light cord length: 1.1m - Glass thickness: 4mm - Item label: D61-004V70WT Note: 1. The general guideline is that every 1cm of fish requires 1L of water. 2. Under reasonable fish farming conditions, weekly replacement of filter cotton, addition of filter material, and nitrifying bacteria can maintain water quality without frequent water changes.