The aptly named Ping-pong tree sponge (Chondrocladia lampadiglobus) is a carnivorous sponge. Those ping-pong ball looking things are covered in tiny spicules which the sponge uses to catch tiny crustaceans.
Clown Trigger Fish: The clown triggerfish is widely distributed throughout the tropical and subtropical waters of the Indian Ocean until the western Pacific Ocean. It is most commonly found along external reef slopes with clear water until 75 m depth.
There are many kinds of Triggerfish. This is a Clown Triggerfish. They are very feisty and will bite your hand when trying to feed them. If you keep them in an aquarium they will bite tubes and stuff and cause real havoc! They have personality.
Genetically engineered angelfish (Pterophyllum) glow in a tank at the 2012 Taiwan international aquarium expo. The fish are the world's first pink fluorescent angelfish and can view without black light.