What is a halimary?

Does oxygen rich water flows over the gills? Do basking sharks lay eggs or give live birth? Are fishes all the same in characteristics? What does it mean when your Betta is constantly swimming at the surface. he's definitely alive but he seems to like this one spot in his tank where he just goes to the top and chills. Whats wrong? How does the hammerhead shark move and survive in its habitat? Are white tip and black tip sharks dangerous? What is best cooking temperature for poaching trout? What is crude salt? Is abalone a fish? What are eels living conditions? Do piranhas live in Hawaii? A name of a blue-green color? What did the fisherman do? Who eat guppies? Why do plants live in either a salt water environment or a fresh water environment? Do stingrays have flippers? What is a good product to seal a concrete fish pond? What group of microorganisms is most likely to spoil a freshwater trout perserved with salt? What would happen if you had no liver? Is pollack fish is halal?