Sea Monkey royalty has arrived - roll out the red carpet and welcome them to their castle! The elegant castle, complete with turrets, makes the perfect home for these little monarchs to swim about. The lid has a built-in magnifier so your child can keep a close eye on the Sea Monkeys' activities, and the habitat is tip proof. Kit includes everything needed; just add boiled or bottled water. Sea Monkeys are guaranteed to live (and rule their domain) for 2 years! The tank needs to be filled with water to fill line. The sea monkey eggs are a dry powder because of cryptobiosis, a state of suspended animation that occurs naturally in Sea-Monkeys in order to help them survive until ideal conditions appear. Details:MulticoloredFor ages 6 and upContents:PMS plastic tankFood packetWater purifierSea monkey eggs