Does ghost sharks exist

Can hermit crabs have salt water and purified water? What is in the community of living things in a pond habitat? Are all male guppies smaller than female guppies? Can you put your pacu in your pond? What is GWS? Was the guy that played Jacob from shark boy and lava girl? Can Glofish live in Tonic Water? When can you take the fish form in the perfect world raising tide game? What are crabs sensors called? How does excess sediments affect filter-feeders? Cooling system Johnson 9.5 seahorse? Why clean the plastic water tanks Is it necessary? Is water a substrate? How many people did jaws kill in real life? Can tap water kill aquarium fish if it is not dechlorinated? How much gravel do you need to cover a 10 x 70 area 5 inches deep with gravel? How fast can a csx go? What shark has a tail fin almost the size of its body? How can you identify piranha? How do snails make more snails?