Dino Sphere - Bioluminescent Plankton Mini Aquarium
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The cool new Bioluminescent Plankton Mini Aquarium is a glass sphere filled with tiny bioluminescent dinoflagellate marine plankton that photosynthesize light during the day and brightly glow blue at night when gently swirled - no batteries required. When not acting as unique decorative living art, it also makes a soothing natural nightlight and, I guess, a flashlight in pinch.