This is the world's smallest working aquarium, which holds just two tea spoons of water and measures just 30 mm. wide by 24 mm. high and 14 mm. deep, can be held in the palm of your hand. It is so small there is only room for these baby zebra fish.
Air control valve controls how much air flows through the air stones - to not bother betta fish. Mason Jar Aquaponics system with 3 jars, and an air pump that delivers air to plant roots Herb garden/ salad garden / indoor garden all in one.