What does it mean if goldfish constantly swim?

What are some issues for marine life? What eats a white shark? What do you have to have to be a fish? Is a ring tail a consumer? What is the gas filled organ of bony fishes called? Do mollies have to be the same colour to breed? How large is a white pointer shark? What are the minerals used in hydroponics? Why do salmon have variations in there trait? Is heron a fish? Your platys are fighting what do you do? What will the fisherman so when they hear the seagulls call? What effects the sierns to the mermaids? What does a manta ray eat and how does it get food? Where was fish resource developed? Do whale sharks have scales? Where does the Kentucky bass live? Do sharks attack because the black wet suits look like seals? How much are 10 to 30 gallon tanks? How big do crappie get?