Downstairs is all wrong, a look is not to understand the fish, the swordfish and this fish is completely different, the difference is that the mouth is not so long, the color is not so white, the tail is not the same, which is clearly the needle mouth fish, can give them wrong swordfish, there are many pictures online is wrong, often Baidu picture search fighting fish inside often have koi, these people are estimated to be the search of the swordfish, see the Baidu picture! The first thing you need to do is to get a good look at the picture, and then you'll be able to see what you're looking for.