What is the constituent Element of Sardines?

Tropical Fish For Sale? What do treatment plants do with sludge after they clean the water? What if a betta fish is red on its body and swims really fast is it a boy or a girl? What is the scientific name of a manta ray? Where could you buy pond snails? Do Megalodon sharks have bones? How many fish species are in the Thames? What is in a mermaid pouch? Dad has a secret fishing spot where he catches the most fish? Is red cod a producer? Do fish have shell? IS THEIR EPHEDRINE IN CAT TAILS FROM A POND? A salmon moves from a saltwater ocean to a freshwater river. What takes place in the salmon's cells as it moves? How do you take care of your new acquatic freshwater snails - like what do you feed them to begin with? Do cats eat hermit crabs? Can an air pump be too strong for guppies? Is a baby bull shark raised by is parents? Do catfish make sounds? Should you let your brother cross-dress and be one of your bridesmaids in a dress and high heels and his hair and make-up done just like the girls? Oceanic zone is?