Chapter 758
Chapter 756 is definitely a misunderstanding
From the sentence of “Tianzi fish tank pomegranate tree, Mr. fat dog fat hoe”, you can hear how old Beijingers like to raise fish and raise dogs, and the rich and leisurely courtyard life makes the dog and the hoe grow fat.
At the end of the summer and early autumn, the mosquitoes gradually became scarce, and the book of the book came from the study.
Move out a recliner, sit under a canopy of purple grapes, peel off a red pomegranate, and ripe pomegranate seeds will sip sweet juice between the lips and teeth.
The fat old dog squatted on the side of the lounge chair and licked his tongue from time to time.
The outer wall of the aquarium condenses fine water droplets due to the abundant moisture, and slowly gathers under the action of gravity, then flows down the cylinder wall and wets a piece of bluestone.
A pair of goldfish with a blistering eye spit in a bubble and played between the green lotus leaves.
The white and fat little girl happily ran in the courtyard.
From this time on, the good life is closely linked to the pet.
The house owner raises a cat.
Lively and outgoing people raise dogs.
Those who want to cultivate their sentiments and cultivate their bodies can raise fish.
Of course, the life of Beijing Siheyuan is not something that ordinary people can enjoy, and there is no 100,000,000.
Old-age fish farming is basically extensive, not too much, and the cold-water fish such as goldfish, grass goldfish and koi are very cold-resistant, even in winter, there is no need to move the fish tank into the house. .
Besides, the fish tanks in the old Beijing courtyard are not only used for fish farming, but also play a role in fire protection. Once a house has a fire, it will take water from the aquarium to extinguish the fire.
Now the greenhouse effect is serious. There are not two snows in the whole winter, but Beijing in the past winter was quite cold. After the winter, the water surface of the fish tank was thick with a layer of ice.
When the spring is opened and the ice is melted, it will be surprisingly found that the goldfish in the aquarium has swung up and swayed, as if it had not been affected by the icing of the fish tank.
With the development of the times and technology, extensive fish farming can not meet the needs of people, because people want to raise fish other than goldfish, grass gold and koi, to raise some more refined, more delicate, less common, more colorful The fish, this time it is the turn of a variety of aquarium equipment to appear.
Some people who are serious about raising fish will go to the fish market or buy some simple equipment online, such as heating rods, pumps, filters and filter materials, and then buy some pellets to live together, all add up to fifty or sixty. Money, so basically can handle at least half of freshwater fish.
Those who are more serious and know how to check the information on the Internet will add some nitrifying bacteria, common fish medicines, and oxygen pumps to regularly change the water in the aquarium, so that at least 80% of the freshwater fish can be fed.
But marine life is much more complicated than this. Wang Qian and Li Kun look at the dazzling array of equipment and big eyes.
It is impossible for Zhang Zi An to take care of the entire aquarium. It is necessary to have Wang Qian and Li Kun in charge of everyday things, so he points to these equipments and explains them one by one.
“Do we know that this is a filter?” they said, playing with one of the equipment.
“Well, but do you know what filter is that?” Zhang Zi An asked.
They showed a difficult color. “Is this… the filter is not a filter? If you put some grinding wheel filter cotton inside, you can filter the fish manure.”
Zhang Zi An smiled and said: “The filter is not that simple. The most important thing in the equipment for fish farming is the filtration system. The quality of the filtration system determines whether the fish in the aquarium can survive for a long time.”
Filters are broadly divided into three categories, physical filtration, biological filtration, and secondary filtration.
Physical filtration is the filtration of fish manure and food residues that have not been eaten by Wang Qian and Li Kun.
Biological filtration, also known as the nitrogen circulation system, converts the ammonia produced by the decomposition of fish manure into nitrates that are almost non-toxic to fish.
Auxiliary filtration, including protein separators, ozone generators, calcium reactors, denitrators, and UV germicidal lamps.
Every time he talks about one kind, he points to the corresponding equipment to let them remember their shape and name, and saves confusion. As for the use of each type of equipment, it is not too late to remember later.
In addition, there are different types of lighting, heating rods, hydrometers, various test strips, and a variety of things.
These devices are not all Carl’s mail from Germany, many of which were purchased online before returning home. Some insignificant equipment does not need to be too high-end.
Wang Qian took a hand net from a box and wondered: “Master, you can’t buy a few nets on the dip net. Why do you buy a box when you buy it? Use so many hands. Is it a dip? It means that the seller refuses to sell only one, and only sells it in a box?”
Li Kun also shared the same feeling. They all thought that such extravagance and waste did not conform to Zhang Zi An’s consistent style.
The size of this whole box of hand-made nets is the 100 root, which is divided into several colors.
“That’s not the case.” Zhang Zi An shook his head. “I’m going to remind you that if you need to fish from the aquarium in the future, you must remember that each fish tank corresponds to a hand-made net and must not be mixed. Otherwise, once the fish in a fish tank is sick, it will soon infect all the fish.”
“Oh, it’s like a syringe can’t be used repeatedly?” Li Kun stunned.
“Almost.” Zhang Zi An is sure.
When I go to the fish market, fish shop or aquarium to buy ornamental fish, the customers see a thriving scene in the fish tank. When the owner smiles and counts the money, she will never think that many shopkeepers open the store every morning. The first thing is to cry and throw out dead fish… The so-called thief eats meat, and no thief is beaten.
Fish disease has the characteristics of slow onset, long cycle and high contagiousness. It basically waits until the onset of illness has returned to the sky. Therefore, it is very important to prevent and timely isolate the source of infection in advance, and the mixed dip net is very important but often overlooked. A vector, a lot of minds, the owner of a hot fish shop is paying tens of thousands, hundreds of thousands of tuition fees.
In this regard, Carl specifically reminded him.
Zhang Zi An The first task assigned to Wang Qian and Li Kun today is to use self-adhesive label paper to label each handwritten net, from 1 to 100, to correspond to each aquarium one by one, never Mixed.
They nodded and promised.
“Which thing does not understand what it is for?” Zhang Zi An asked again.
Wang Qian and Li Kun look at each other.
Zhang Zi An thinks that their looks are a little weird. “What’s wrong? If you don’t understand, just ask, don’t understand how to read. Don’t understand, it doesn’t matter, who doesn’t understand at first.”
“Master, we understand…” they said with a sigh of relief, “but…”
“But what? If you have any questions, just say it.” Zhang Zi An urged, “I have something to do later.”
Li Kun took out a box from behind, “Master, you let us move the courier and move it over, but this thing really doesn’t know what it is for… We thought it was wrong at first, but the recipient is indeed your name……”
He twitched out of the box and took out a pitiful light blue bikini swimsuit with one hand and one hand.
“Master, can you tell us what you are doing to buy this?”
Zhang Zi An, a cloud-like look, “Oh, I bought it.”
They said with tears: “Don’t lie to us, Master! Even if you are a woman, we will not disappoint you!”
“Where! Where do you want to go? I am really special to give away!” Zhang Zi An clarified almost desperately.
God knows how long the brains of these two goods are!
“But you have no girlfriend, no wife, who is going to buy a bikini? Is it inappropriate for a normal female friend to send this?” They kept holding on to this problem.
Zhang Zi An is a slogan. I can’t say that there is a mermaid in the bathtub. Is it for her?
“This… I will send you off your ass! Can I use it for collection?”
“Collection?”
Wang Qian and Li Kun listened, and his eyes looked like he had upgraded from “metamorphosis” to “great perversion”…
(End of this chapter)