Gold fish is an omnivorous ornamental fish that has been cultivated and bred by humans for a long time. Like crucian carp, it eats both animal feed and plant feed. If you have the heart, you can find that they love almost everything. As long as it is something that is visible and within reach, goldfish will be eager to taste it. When hungry, they don't even spare their own feces. So how to choose feed for goldfish is particularly important?

Feng Tail dragon eye

Smells good.

The good feed has a natural fish and shrimp smell, while the poor quality feed has a lot of flour added, which smells like a greasy spice and a salty feeling, a bit like adding MSG or chicken essence. As for the kind that smells sour or rancid, it's the worst.

No muddy water.

A good feed will keep its original shape for a long time in water and will not fall apart and dissolve. Poor quality feed will soon become mushy, and even the water will turn into the color of feed, that's too bad! Of course, this long time is a matter of opinion. There is a saying on the Internet that it is a day, but I personally don't agree. Because if the feed does not dissolve in the water for a day, it will be similar in the stomach of the goldfish. How difficult is it to digest? Therefore, the feed that does not dissolve for too long may cause enteritis. I personally think that the feed can be kept in the water for 2-4 hours without interference. In fact, it is better to feed the goldfish within 3-15 minutes. By the way, many places that sell small goldfish are 50 cents per bag of red and green two-color small-granule bulk feed, red blood red, green emerald green, that is super rotten, muddy water, faded color, don't buy it!

Non-greasy.

The good feed is put into the water, and the water is still clear, just like no feed. The poor quality feed itself has insufficient materials, in order to lure goldfish to eat, oil is used to enhance the fragrance. The surface of that kind of feed looks shiny and shiny, and when it comes to the water, the surface of the water is a layer of oil film, which is really horrible...and maybe it's still the use of waste oil...

The volume is slightly smaller Good.

On the Internet, it is said that the feed should be matched with the fish. But I personally think that the feed should be one size smaller than the fish, that is, the big fish are fed with medium grains, the medium fish with small grains, and the small fish with ultra-small grains... The reason is, of course, that the smaller the feed, the easier it is to digest and reduce the chance of enteritis loss. . But if it is too small, the eating time will be prolonged. The fish eats hard for a long time, but there is nothing in the stomach, which is not very good, so a smaller size is better.

Does not swell with water.

After a good feed is put into the water, after a period of time, the volume is almost the same as when it is dry. And poor quality feed, water swelling is very strong. Everyone knows that goldfish actually know that they are full, but some goldfish are still killed. In fact, they have eaten inferior feed. It is no problem when they eat it, but the feed quickly absorbs water and expands in the belly of the goldfish. Even if it does not die, it may endure indigestion or even enteritis.

Soft.

Although the good feed will keep its shape for a long time after being put into the water, it will become mushy when you press it with your finger, which means that it is easy to decompose and digest like porridge. It is suitable for The delicate and fragile stomach of goldfish, oh, goldfish has no stomach, but because of this, the intestines of goldfish are more prone to malfunction, so they must be carefully cared for. And the poor quality feed is as hard as a stone, and it can't be pinched with a fingernail. How much effort do you think it takes to digest it? That kind of feed is not eaten by wild fish, let alone goldfish...

Protein content above 30%.

In addition to the wild vegetable feed specially for goldfish, the goldfish feed as the staple food must have enough protein, so that the fish can grow into a beautiful and domineering shape, and if you want to give the goldfish a strong atmosphere The head tumor, then the protein content is more than 40%, or even close to 50%. But pay attention to the real protein content, not the false standard, or use melamine to fool the protein detector... But how much protein is in the feed, we ordinary people can't see it, so, probably, this is only I can rely on word of mouth...

In addition, I personally think that for goldfish that do not need hair, it is meaningless if the protein is too high. There are also those goldfish that are over two years old and have grown up, and there is no need to use high protein to accelerate their growth, just normal feed.

Good hydrophilicity.

A good feed is high in protein and low in fat, ie low in oil. And low oiliness will be more hydrophilic, hydrophilic means that it is easy to combine with water, such feed is easy to digest and absorb. And some sinking feeds of average quality are thrown into the water, and there are still many small air bubbles hanging on them, which is not good. I personally have a test method, which is to drop a drop of water on the glass plate and push a feed to gently against the drop of water. If the feed absorbs water at once, it is a good feed that is hydrophilic. If the feed and water droplets are in a situation that the well water does not make the river water, then the oiliness is a little too large, or the quality of additives such as adhesives is not very good.

Add beneficial ingredients.

Generally, spirulina is added to goldfish feed. This is equivalent to vegetables. It is easy to digest and has the effect of making goldfish more colorful. There are also probiotics, similar to the bifidobacteria in yogurt. Probiotics are added to the goldfish feed to help the goldfish digest and regulate the stomach. There is also a very good additive is allicin, which is very effective against enteritis, and the key is that there are no toxic side effects... and so on. Of course, like the protein content, we don't have a microscope, and we can't tell if those things are really added. Therefore, this estimate... First, it depends on the ingredient description, and second, it still depends on word of mouth...

Fish loves to eat.

Said a thousand words and ten thousand, after all, the feed is used to feed the fish, even if you are as good as a flower, the fish will not eat it is in vain. Therefore, the premise and foundation of good feed is to make fish like it very much and want to eat it! After all, good feed can only exert all its beneficial effects if it is eaten by fish.