The biOrb CLASSIC 15 Aquarium is a minimalist design that adds joy and wonder to your home. This 4-gallon (15 L) acrylic aquarium is inspired by the simple beauty of a classic fishbowl, a 360-degree view so you can admire all aspects of your biOrb. This biOrb CLASSIC has a bold silver lid and base that create a stylish, finished look to this unique aquarium. Its compact size (11.75 x 11.75 x 12.5 in.) is ideal for desktop or tabletop display. The aquarium comes with everything you need to start your new hobby, including an acrylic tank, low-voltage air pump, white LED lighting, filtration, and instructions. Made from acrylic, the aquarium is 10 times stronger and 23% clearer than glass, and it also acts as a good insulator to retain heat. The 5-step filtration system ensures clear and healthy water by providing biological, mechanical, and chemical filtration, as well as water stabilization and oxygenation. The filter is conveniently located at the bottom of the aquarium, and the ceramic media surrounding it promotes the growth of beneficial bacteria. Setting up and maintaining the biOrb aquarium is quick and easy, allowing you to unleash your creativity and decorate it with a variety of biOrb aquarium decorations. Depending on the fish species you choose, maintenance may only require around 15 minutes per month using a biOrb Service Kit. The aquarium is backed by a 2-year warranty, allowing you to enjoy the wonders of nature in your home with biOrb.