Specification Size: overall = 11 "L x 5.9 "W x 8.1 "H / fish tank section = 5.1 "D x 7.9 "H Maximum capacity 0.7 gallons Our desktop betta fish tank with high translucent acrylic body and food-grade ABS plastic chassis is equipped with a USB silent micro water pump. Self-contained aquaponic system provides a healthy symbiotic environment for fish and plants, replicating nature's metabolic cycle Unusual storage design allows for a perfect blend of office, study and eco-aquarium. Ideal for adults and children, the self-sustaining ecosystem creates a harmonious ecosystem with fish and aquaponic plants, allowing me to observe its growth and development while working and studying In addition, our Aquatic Plant Cultivation Tank comes with small natural stones as planting medium to better anchor the aquatic plants and is permeable and airy so it won't pollute the water. There is also an opening at the top for feeding fish This mini fish tank can not only enjoy the cute little fish, but also see the fresh green plants, no one will refuse such a gift, which will make our home full of natural flavor. And there is no need for tedious maintenance, knowing this, your family and friends will be more willing to accept it!