Sea-Monkeys Night-Life Gems Three beautiful, hand-made "gem" stones coated with the world's most phosphorescent pigments and sealed in glass - Super safe and totally non-toxic, they will glow brightly for hours after held in sunlight or placed near a bright light for a few minutes! Place the gems into your Sea-Monkey tank when your pets are a few weeks old - The Sea-Monkeys will swarm all over the brightly glowing gems! Set comes with Tank with Aero-Vent cover, pipette, illustrated instructions, calibrated feeding spoon, #1 Water Purifier, #2 Instant Live Eggs, #3 Growth Food, 3 "night-life gems", and more! Includes "Hatching Time and Temperature Chart" which will help you understand the process by which Sea-Monkeys seem to pop into existence! The Sea Monkeys will swarm all over the brightly glowing gems, and the gems will glow for hours!