From the original, amazing live Sea Monkeys company comes the Sea Monkeys Ocean Volcano Instant Pets with Tank. This instant pets set includes a tank, a water purifier, eggs, and food-everything you need to get started! A larger tank with a super cool volcano feature helps keeps the sea monkeys comfortable and happy. A classic sea monkey habitat set, you have everything you need to create your very own adorable aqua-pets that grow up to 1cm!