Name of the butterfly-tail goldfish fish: Because of its tail fin that resembles a butterfly spreading its wings, this goldfish is best suited for looking down. Watching butterfly tail goldfish playing in the water is colorful and colorful. The butterfly tail is generally two leaves on the left and right, and the tail fin is spread out in a large font, and the front edge is inverted. So like a butterfly. The degree of reverse warping. It determines the degree of the fish. Generally, the angle between the leading edge of the caudal fin and the side of the body is less than 45 degrees. It is better if the ends of the fins reach the gills or even the eyes. For a good butterfly tail, the caudal fin must also be fully unfolded when stationary, especially the left and right leading edges must be in a straight line. It is allowed to turn left and right to the end of the fin without affecting the line of the entire leading edge. The entire tail is gorgeous and stable, like an open folding fan. Otherwise pull it down. That is not butterfly love spring flowers. The name of the butterfly tail goldfish. Because it looks like the tail fin of a butterfly spreading its wings, this type of goldfish is most suitable for looking down. Watching the butterfly tail goldfish in the water is colorful and colorful. When it is rolled out, the leading edge is reversed, so it looks like a butterfly. The degree of reversedness determines the degree of fish. Generally, the angle between the front edge of the caudal fin and the side of the body is less than 45 degrees, and the fin end reaches the cheeks and even the eyes. The caudal fin must also be fully extended when the butterfly tail is stationary. In particular, the left and right leading edges must be in a straight line. It is allowed to turn left and right at the end of the fin, and cannot affect the line of the entire leading edge. Otherwise, pull it down. On this basis, the tail shape of the butterfly tail is also mysteriously different. The trailing edges are close together. The central fork is small. The whole tail line with a larger fork at the trailing edge is like a double fan. The double fan dances against each other, and it also extends backward at the end of the trailing edge. It is like the unique tail of a swallowtail. It echoes with the end of the leading edge, and adds a bit of fiber. Charming and sophisticated. The body color of butterfly tail goldfish is also very particular. In particular, some tails have multiple colors. Such as red and black, five flowers, etc. will show color with the neatly arranged spines of the caudal fin. The shades change alternately, such as a famous singer singing a poem. The caudal fins are clearly explained, and even the arrangement of real butterflies on the pattern is difficult to be so ingenious. In addition, the distribution of the body color of the tail butterfly is also very particular.     Twelve red butterfly tail dragon eyes. Panda goldfish. There are often hundreds of thousands of tails that have a clear and unrelenting color world. That is the best that can be encountered and cannot be sought.     Butterfly tails are generally dragon eyesspecies. Also known as butterfly tail dragon eyes, so the eyes are also an important part of choosing butterfly tails, among which chessboard eyes The best with butterfly tail. The whole eye line is simple and symmetrical. Dragon eye type points: chessboard, bulb type, grape type, etc., there are icing on the cake.      As for the symmetry of the eye shape. Just pay attention. The symmetry of the eye shape is strictly controlled. The characteristic of this fish is the bright color of its fins~The tail fin is in order from outside to inside Make transparent. Light yellow. Black. Red. Progressive layer by layer. This color division shows that its body color is mostly a time color, which is the result of the gradual receding of black. Of course, this will have an impact on the value of goldfish~    But beauty itself does not lose its color because it is fleeting. Good. But it is full of regrets. Because there is never a chance to see the infinite possibilities of beauty, the transparent fins of goldfish are often very delicate and sensitive. The water quality is not handled properly, and there is a little struggle when re-catching. The roots of blood appear immediately, and the entire fins are densely covered. It is really bad for the scenery. Therefore, for goldfish players, they are very familiar with cultivation skills. Although this butterfly tail and tail fins are delicate, their strength is really not bad~.     A dystonic tail butterfly. Fully open when in motion, overshadowed by static. The posture of a good tail butterfly. Even if it hovers in the water, it is always squeamish and soft, but it is still stretched and straight. Behind the slenderness, it is hard to hide the strong aura.