How to pick a healthy and good-looking goldfish

Goldfish is an ornamental fish I often see, many places have the habit of raising goldfish, loved by people, so you know how to pick goldfish? The following is what I have organized for you how to pick goldfish related content, I hope it is useful to you!

Selection of goldfish

Selection of larger, more robust goldfish

In the purchase of goldfish, be sure to choose the relatively large size of the goldfish, the large goldfish resistance is relatively strong, in addition to those chubby goldfish can also be selected, the fat on behalf of the able to eat, able to eat on behalf of the goldfish very The first thing you need to do is to get a good deal on a new goldfish.

Pick a goldfish that swims fast

How to pick a goldfish? The secret to choosing a goldfish is that it is a fast swimmer and a lively swimmer. A goldfish that is fast and swims vigorously means it is in good health. This is the only way to keep a goldfish for a long time. Those goldfish that are always at the bottom may be sick and will die soon.

Observe whether the color of the goldfish is bright

Whether a goldfish is healthy or not, you must look at its color. The healthier the goldfish the more beautiful the color. If the color of the goldfish is not correct, either the breed is too poor, or it is sick and faded, such a goldfish discarded.

Color selection tips: more brightly appropriate. The more red the red, the more black the black ... Close to the original color is ok.

Observe whether the scales are intact

Healthy goldfish scales are intact, if the goldfish fall off the scales, either sick, or bullied by other fish. This kind of goldfish has poor physique and is hard to keep alive. Cannot be bought! Even if you buy it home, keep it alone for a few days and put it back into the tank when the wound is better.

Don't buy a goldfish that doesn't fit in

Nine times out of ten, a goldfish that doesn't fit in is sick. Whenever a fish is out of place, it is not a good sign. Even if the goldfish doesn't show any signs of illness at the moment, it's not a good idea. Maybe this is the incubation period of the disease. When choosing a goldfish, be sure to pick one that is sociable and lively.

Don't buy a fish that always floats its head

A goldfish that floats its head indicates a lack of oxygen, so if a tank of goldfish are all floating their heads, then refer to the 4 steps above to buy. But if only some of them are floating then you can't buy these fish. The oxygen tolerance of these fish is too poor. They will definitely die from lack of oxygen in hot days. (Oxygen pumps are another story)

Methods of identifying male and female goldfish

(A) the difference in external morphology:

(1) the difference in body shape: male goldfish are generally slightly longer in body shape, and female goldfish are shorter and rounder in body shape. Females have a larger abdomen than males during the egg-laying period.

(2) Difference in caudal peduncle: males are slightly thicker and longer than females.

(3) Difference in pectoral fins: careful observation reveals that males are slightly longer and more pointed, and the first pectoral fin spines are thicker and harder; females are shorter and rounded, and the first pectoral fin spines are less hard.

(4) Differences in genitalia: from the belly upwards, the male genitalia is small, narrow and concave; the female genitalia is large and slightly rounded, convex outwards.

(b) the difference in color:

Different male and female goldfish, slightly different in body color, male fish are generally brightly colored, and female fish slightly lighter, in the breeding and development period, the male fish color is more bright.

(C) sense of touch and motion:

The hand gently rests on the abdomen of the fish, the middle finger and ring finger sense that the male fish has a clear hard line in the abdomen, the female fish is softer in the abdomen. When you walk past the edge of the pool, step on the foot and observe, the male fish swim fast and agile, while the female fish moves slower.

(D) Star-chasing:

As the temperature rises, goldfish will appear in the spawning period of the second feature - star-chasing, which is the most easy to identify the sex of the goldfish, the most accurate time, but also one of the easiest to master the identification method. The male's star chaser appears on the first spines of the pectoral fins and the edges of the gill covers, and more often than not the entire pectoral fins have star chasers growing on each fin, with the ones at the front being obvious, and the ones at the back having to be carefully observed. This rough' little white spot is the chasing star.

Water Changing Methods for Goldfish

1. If there is no free pool, you have to fish all the goldfish into the basin or put the net box into the neighboring pool water for temporary rearing, and add an oxygenating head to increase the oxygen in the basin or net box. Then, brush away the moss on the wall of the original pool, rinse thoroughly after re-injection of isothermal new water, stand for a few moments until the water temperature is equal to the fish fished into the original pool (tank).

2. If there are free pools and new water, all goldfish will be fished into pots or nets, selected and processed, the pools are divided into pools, and the pools are not divided into pools to be equal to the temperature of the water can be moved into the new water to feed the goldfish. This method of water change should pay special attention to the water temperature, it is best to choose a sunny morning before 9 o'clock. However, this method is generally only applicable to adult fish or larger juvenile fish, and should not be used for young fish. If conditions permit, before a complete water change, you can first fill the spare pool (tank) with ambient water, and then fish directly into the spare pool (tank) is good. This is a small change in water temperature, the fish are easy to adapt to the new environment, so that the fish from the basin or netting the pain of extrusion. This method of water change, in the spring and fall seasons generally every half month or so for 1 time. Summer weather, water temperature up to 28 ℃ or more, in the water color is very easy to thick color, the water quality is very easy to turbidity, generally 4-7 days should be a thorough water change. In winter, the water temperature drops to about 4 ℃, goldfish activity is slow, appetite is reduced, the water quality is not easy to corrupt, no special circumstances generally do not change all the water.

It should be noted that, due to the density, size, feed, feeding habits, water quality and maintenance of equipment differences, water change method can not be too dogmatic, according to the state of water quality and fish to adjust appropriately, these need to be long-term fish experience.