Sea-Monkeys Ocean Zoo lets you build a tiny underwater world from scratch. The colorful tank has a molded seascape in the background and built in magnifiers in the walls, so once your Sea-Monkeys hatch you can get a close up look at them drifting and darting around their new home. A ventilated lid keeps the water aerated and your little critters happy.

The kit includes everything you need to get started: water purifier, instant live eggs, Sea-Monkeys food, a feeding spoon, and full instructions. Kids mix the packets, wait for their new pets to appear, then feed and care for them over time, getting a simple, hands on intro to basic science and responsibility along the way. Tanks come in three assorted colors (blue, teal, or purple), and you’ll receive one at random.

Recommended for ages 6 and up.