"Everything in ocean is Madhbooh (slaughtered)." [Bukhari]
I hear a lot of discussions going on about what is halal and haram from the sea.
One side claims that anything form the sea is halal, be it fish (including carnivore fish like sharks), shell fish, octopus, quid, crab, shrimp etc.
The other side states there is a more specific ruling, in that if the animal is a scavenger (in the above cases, a filter feeder, or bottom feeder picking up floating or sunk pieces of food, etc) of if it is a carnivore then it is not halal even if it is from the sea.
I've never found a scholar rule on this.
What from the sea is Halal?