The perfect introduction into fish keeping.... Gravel and plant included! Great gift idea for Betta fanciers Convenient feeding hole in the colorful lids, make feeding your Betta both easy and fun Ideal for home or office Feet on the bottom fit into lid grooves to create "stackable" units Size: 6" x 5.5" x 6" holds 40oz with Gravel & 44oz without Gravel