The size of the fish tank created by Anatoly Konenko is only 30 * 24 * 14 mm, and can only contain 10 ml of water. Although its volume is very small, it is very rich inside, and there are many microplants and stones. Even small fish are placed. People need to use magnifying glass to see the landscape. In addition, in order not to disturb the fish living in this small world, Konenko needs to use syringe to change the water in the fish tank every time. He also specially made a small fishing net to match the mini fish tank.