We carry the best acrylic aquarium brands including Clear For Life, UniQuarium and Red Sea Max. BestPetStoreOnline.com’s wide assortment of aquariums ranges from small globes and desk top models to 100 and 125 gallon models and include corner aquariums, bowfront aquariums, rectangular and even hexagon and pentagon shaped aquariums. Many incorporate three-in-one filtration systems that combine mechanical, chemical, and biological filters for a perfectly balanced environment.