What are all the predators of a skate fish?

Your pond liner is going green why? Why do your goldfish stay in a group at a corner? What is the diminutive of salmon? What would imply that humans and fish had a common ancestor? National fish of barbados? What kind of shark has lungs? When is the best time to stock a pond with fish? Are sea dragons poisonous? Where and how does a whale shark sleep? What are two adaptations of the bull shark adapted to survive in its habitat? What number is tetra? What is the size of the smallest breed of angelfish? Why are there no fish in the lakes acid rain? Do great blue herons eat bullhead fish? Are all eels poisonous? What does a rohu fish eat? Should you still have an air pump in an aquarium even if you have a filter? What size are Great White Sharks? Do guppies lose their gravid spot after having her fry? Why do sharks have a 2nd dorsal fin?