Goldfish cannot be eaten:

1. Goldfish is a cross between crucian carp and other fish. The reason why it cannot be eaten is probably because people are worried about genetically mutated species. Right.

2. Goldfish is a variant of ordinary crucian carp that has been bred after many times of cross-breeding and screening. Some of the medicines used for ornamental fish are harmful to humans and are not allowed to be used in edible fish, so it is best not to use them. eat.

3. Goldfish are brightly colored and beautiful things are poisonous. This may be a reason. That’s why Chinese people eat so many things, but they don’t eat goldfish.

4. On the other hand, fish food is very abundant, but goldfish are too small to meet people’s dietary requirements. Secondly, it is also because of the ornamental value and high price of goldfish. A Goldfish cost tens of thousands, can most people afford to eat them? Moreover, some very beautiful ornamental fish are poisonous. Goldfish themselves are hybrids of various crucian carps and artificially select the prettier ones to reproduce for the purpose of being viewed by people. Therefore, goldfish It has many thorns, little meat, bad taste, and no edible value.

Goldfish are the most common ornamental fish that are suitable for domestication. The breeding conditions are not harsh, such as the dragon's eye, the blue dragon's eye and the magpie's dragon's eye.

1. Shopping

1. Selection period

Depending on the region, goldfish usually lay eggs from February to June, and goldfish are on the market from September to November. the best period.

2. Choose between good and bad

Goldfish can generally be selected from several aspects:

3. Check whether they are gregarious

Every time you leave a No matter how colorful the fish is, don’t choose fish that swim alone in a school. Choose fish that swim close to the bottom of the pond while looking for bait. Such fish are healthy.

4. Determine whether it is thin or not

Don’t choose thin ones when buying goldfish, as thinness indicates poor nutrition. In addition, you cannot buy fish that only move their heads and don’t move their bodies when swimming. Such fish may be sick. You should choose fish with swollen and fat belly.

5. Whether it is well-proportioned

Do not choose fish with uneven tail fins or tilted to one side; choose goldfish with eyeballs as large as the size and a well-proportioned body.

6. Look at the color

Goldfish come in many colors. When purchasing, you should pay attention. When choosing black, you should not choose gray or gray-black; when choosing crimson, you should not choose Red, yellow or yellow, and some red fish are carrot-colored, which is the worst. Some fish are half black and half red, or have red bodies or black edges on their fins. They seem beautiful, but they may turn completely red soon.

7. Whether the scales have fallen off

Since goldfish are loaded and unloaded from hatching to growing into juveniles, some fins and scales are easy to tear and fall off. The dorsal fin and tail fin of goldfish are easy to break, the fin blades are easy to crack, and the scales are easy to fall off after being fished out. After the scales of red and black goldfish fall off, the fish body will appear white, which is easy to distinguish when purchasing.

8. Look at the tail fin

For all species with four-lobed tails, the two middle lobes of the fish's tail fin must be separated. If it is found that it is not separated and looks like a three-layered arrow, it is a damaged goldfish.

9. Look at the floating head

When you see individual fish that are out of the group and always like to float to the surface with their heads up and tails down to breathe and spit out, they will not be able to bear the slight lack of oxygen in the water. It is difficult for this fish to survive the summer, so don’t choose it.

10. Choose the age of the fish

The lifespan of most domestic goldfish is 4-6 years, and 2-3 years is the best age for ornamental fish. At this stage, goldfish species have obvious characteristics, strong bodies, and Swim freely. Goldfish aged between 4 and 6 years old are considered old. Their body color has faded, they are lazy to swim, their appetite has weakened, and they are prone to illness. However, goldfish under 6 months old have just begun to develop, so their species characteristics are not obvious, their colors are not fixed, their defective product ratio is very high, and they are limited to family breeding conditions, making it difficult to raise them. Therefore, it is most appropriate to choose goldfish aged 6-18 months.

11. Choose male and female

Goldfish are dioecious and it is easy to distinguish them during the breeding season. Male fish have very obvious signs of secondary sexual characteristics during the breeding season - many small white protrusions, called star chasers, appear on the gill cover and the first ray of the pectoral fin. After the breeding season, the chasing stars gradually disappear and become difficult to identify. The abdomen of the female fish is obviously enlarged during the breeding season. If you touch it with your fingers, it will feel softer and can be easily identified accurately. In short, the principle is to choose fish with obvious species characteristics, healthy and disease-free, bright colors, and complete characteristics.