Chapter 835: Three Schools

The relationship between Welder Zhao and Electrician Wu was even closer. On the second day, he recounted to Electrician Wu what happened to him when he met Carpenter Wang yesterday, and was immediately reprimanded by Electrician Wu.

Electrician Wu called him ungrateful, so how can you believe what others say? How do you know if Wang Carpenter recommended that aquarium because he got kickbacks from that aquarium? Maybe he can get a bonus for every person he recommends into the store?

After being scolded by Electrician Wu, Welder Zhao hesitated again. He felt that both sides seemed reasonable, so he decided to go shopping on both sides. Taking advantage of the promotional activities at the opening ceremony of the Qiyuan Aquarium, he followed Electrician Wu to come here first, and then went to another one tomorrow or the day after tomorrow to have a look.

Welder Zhao gave the lecture, and Electrician Wu added on the side, exposing his shortcoming by the way, finally let Zhang Zian understand what they were arguing about.

Electrician Wu took a breath and said, "Xiao Zhang, this is a stubborn donkey, I can't convince him... Tell me, is what Wang Carpenter said true?"

Welder Zhao wanted to refute, but he didn't say anything in the end, because he also wanted to know whether what Wang Carpenter said was true or not.

Zhang Zian thought about his words and said, "Actually, what he said makes sense..."

Welder Zhao opened his mouth, and was about to mock Electrician Wu, but Zhang Zian continued, "But what he said is not the truth."

"How do you say that?" Electrician Wu asked.

Zhang Zian explained in detail that there are generally three schools of thought in seawater fish tanks. One is to open a tank with live rocks, which is what Zhao Welder did before; Kill all the organisms and microorganisms attached to the live rock, and then put them into the fish tank to raise fish; the third is to open the tank with artificial stone, which is similar to opening the tank with dead stone, except that the disinfection step is omitted.

Interestingly, only in China, live rocks are used to open tanks, while in foreign countries, dead stones occupy the absolute mainstream, a small part of them are artificial stones, and very few people use live rocks to open tanks, and in some countries There is also legislation prohibiting the use of live rocks to open tanks... There is a strong contrast between domestic and foreign countries.

Zhang Zian learned how to run an aquarium from Carl from Germany, so of course he also learned the theory and technique of opening a tank with a dead stone. Still, he has a sense of the strengths and weaknesses of the three genres.

With no proof, he called Li Kun to bring a living stone that had not been used yet.

The live rocks in his store are wholesaled from the fish market. Most of them have been processed and turned into dead rocks, and a small part of them are still in the state of live rocks.

Li Kun brought a plastic washbasin, which was half filled with seawater, and a piece of natural live rock was soaked in it. The surface of the live rock was slightly brown and covered with wrinkles and pores.

"This live rock should be similar to the reef in your home." Zhang Zian rolled up his sleeves, fished out the live rock from the water, and showed it to the two old people.

They nod.

Immediately afterwards, Zhang Zian made a move that was beyond their expectations. He used a cotton cloth to pad the ground, put the wet live rock on the cotton cloth, took out a hammer from the toolbox, and smashed it hard against the live rock. down!

With a clicking sound, the living rock split into four or five pieces from the middle, and the seawater contained in the inner cavity flowed all over the ground.

"What... what are these things?" Electrician Wu exclaimed.

After the live rock was split open, some small and strange-shaped creatures flowed out together with the sea water.

Bugs with setae all over their bodies, wriggling tube worms, tiny translucent sea anemones, squeaky little crabs crawling around, brightly colored shrimps, and some completely indistinguishable creatures... No matter whether they It never occurred to me that there are so many things hidden in this small living rock.

Zhang Zian pointed at these creatures with the handle of the hammer, and introduced them one by one, "You have seen this before. The bristle caterpillar, which is similar to the claretworm, is actually useful. It can help you dig the sand and clean the gaps in the live rock; the tube worm And sponges are also useful for filtering water; hairy crabs and mantis shrimp are both good and bad; as for these ghost anemones, they are notorious scourges in fish tanks... Putting live rocks in the tank means removing these creatures Bringing it all into your tank may sound like a trade-off, but the benefits that live rock provides can be replaced by something else, and the downside is a headache."

He didn't say clearly the advantages and disadvantages of dead rock and live rock, because existence is reasonable, and live rock can be so popular in China, it is not useless.

Electrician Wu asked curiously: "Why are dead rocks popular abroad, but living rocks are popular in China? What is the reason? Just because of different ideas?"

"Not exactly." Zhang Zian shook his head, "Live rocks are popular in China because the performance of protein skimmers was generally not good in the past. Egg skimmers alone could not completely remove the pollution in the tank, and the live rocks could only be used to accelerate the growth of algae. The process of water... Over time, this last resort recipe has become the mainstream in China, even though the performance of mid-to-high-end egg skimmers is more than enough, many people still regard it as the standard."

Electrician Wu immediately said to Welder Zhao: "Look, did I tell you? You have to listen to that carpenter Wang, do you think he really understands it? It's nothing more than copying what others say. You know what it is, but you don't know why!"

The conversation between them drew other customers in the store to frown at the living creatures in the live rock, bristle caterpillars and the like.

After hearing Zhang Zian's explanation, everyone felt refreshed.

Welder Zhao was not convinced, and said loudly: "If the live rock is turned into dead rock, what about the beneficial bacteria attached to it?"

Anticipating his question, Zhang Zian led them to the nearest aquarium with a bottom cabinet, squatted down to open the bottom cabinet, and let them see inside.

"Huh? Why is there a small tank hidden in the bottom cabinet?" Welder Zhao was very surprised.

As you can see, there is a small fish tank in the bottom cabinet. There is nothing else in the fish tank, only a live rock soaked in sea water. Several pipes connect the small fish tank with the filter system in the bottom cabinet. aquarium.

Zhang Zian further explained: "In the large tank above the base cabinet, there are dead rocks, but in order to supplement the beneficial bacteria, an additional small tank is added to the filtration system. There is a filter in the pipe connecting the small tank, and the bacteria can pass through. , but the small organisms hidden in the live rocks can't get through, and they are stopped by the filter, which can be regarded as combining the benefits of dead rocks and live rocks, and avoiding disadvantages."

"Boss, what brand is this aquarium? I want to buy one too." Someone was moved.

Zhang Zian was waiting for this sentence, and immediately replied: "This is designed and customized by the store itself, and it cannot be bought outside. If you are interested, this store can customize it for you!"

When opening an aquarium, the bulk of the profit does not come from aquatic organisms, but from peripheral products. ...

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