Although the appearance of ordinary sand silkworms is not flattering, it is actually equivalent to bread worms in water, there is no harm, and it can be used as food for several kinds of fish, and the protein content is not low, and even people on the southern seaside also fry them and eat them. However, some silkworms are mildly toxic, and some people may have allergic reactions after direct contact.

However, ordinary sand silkworms are not aggressive and are unlikely to cause the fish to go missing.

Zhang Zi'an heard this suddenly, and hurriedly said, "Let me take another look at that photo." ”

The other people present were originally guessing the reason for the disappearance of the fish, but suddenly saw that his face changed slightly, his expression was serious, and he couldn't help but look at each other on the ground, and even Zhao welder, who had been boasting about how to save money by raising fish, was a little uneasy.

Wu electrician showed Zhang Zi'an the photo again, his mobile phone style is relatively old, and the photos taken are not clear.

"What's going on, Store Manager Zhang, is this insect a sand silkworm?" he asked worriedly, worried about the worker.

Zhang Zi'an looked at it several times, "It's indeed a sand silkworm, there will be no mistake, but it's ......"

"But what?"

"Is this just the picture?" Zhang Zi'an asked, "I'm worried that there is something else hidden in this reef besides the sand silkworms." ”

Electrician Wu listened more nervously, and he suddenly remembered, "By the way, I also recorded a video, I originally wanted to take it back to my wife to see, and my wife agreed to let me change the big fish tank, but this video is not a sand silkworm, just the whole of the fish tank, okay?"

"Okay, it's better than nothing. Zhang Zi'an said.

"Wait until I'm looking. ”

Wu Electrician swiped a few times on his phone, found the previously recorded video, and clicked play.

The shooting quality of the video is not very good, not to mention the clarity, and it is shaking so much that Zhang Zian wants to persuade Wu electrician to carry out early screening for Parkinson's disease......

Zhao welder's self-made fish tank is very large, the length is one and a half meters, the width is not carefully measured, but it is certainly not narrow, there are several black and dark reefs in it, piled up in the center of the fish tank, the bottom of the fish tank is a layer of rough bottom sand, a few common small fish cruising among the overly lush seaweed, pecking at a few algae leaves from time to time.

On the whole, the fish tank is quite like a thing, but because it is not equipped with eggs in order to pursue the ultimate cost saving, the nutrients in the water are also a little excessive, and the water is slightly turbid. Fortunately, there are few fish, and the water quality will not deteriorate rapidly for a while.

These reefs are all hewn down from the sea, and the interior is full of large and small pores, small voids can only be stuffed into a grain of rice, and large pores run through the inside of the reef, nine bends and eighteen bends, I don't know how long.

The more voids in the reef, the better, to reduce its own weight and provide a breeding ground for nitrifying bacteria to multiply, which is certainly taken into account when Zhao welders mined the reef.

"Pause! What's that?"

Zhang Zi'an suddenly found that in the corner of the video screen, something moved between the reefs, extremely fast, but the amplitude was very small, as if something probed to observe the outside, and quickly retracted, leaving only a touch of stirred sand slowly rotating.

He was able to notice because he knew that the problem must be on the reef and had been staring at the reef.

"What?"

Electrician Wu was dizzy and didn't wear glasses, so he didn't notice this detail at all.

He rewinded the video and replayed it, staring at the location pointed out by Zhang Zi'an without blinking.

This time they noticed, but the video footage was not clear, and the thing was moving too fast, and they still couldn't see what it was, and it was certain that it was not a slow-moving sand silkworm.

"What's going on, Old Zhao, what did you put in the fish tank?" Electrician Wu looked creepy and asked Welder Zhao.

Zhao welder's dead duck has a hard mouth, "I didn't raise it, I just raised fish...... Look, what you're fuss about, isn't it just a grown sand silkworm? I've heard that the sand silkworm can grow to almost a meter long, so it should be. By the way, boss, do you have any frogs here?"

"Frogs?" Wang Qian asked anxiously, "Are frogs considered aquatic creatures? ”

He asked about the multicolored frog, a fish, not a real frog. Zhang Zi'an corrected.

"Yes, that's right, it's the colorful frog, I heard that the kind of fish eats sand silkworms, as long as you raise a few, to ensure that the whole tank is clean. Zhao welder said.

Zhang Zi'an shook his head, "Whether the colorful frog eats the sand silkworm or not is another matter, but the thing we see is definitely not the sand silkworm, I'm afraid even the colorful frog will become its food." ”

"What the hell is that?" asked Electrician Wu.

Zhang Zi'an said uncertainly: "I think...... That could be a bobbitt. ”

"Bobbitt, is it Bolt's younger brother?" Wang Qian was stunned again.

Jiang Feifei interjected: "I seem to have heard that it is a particularly ferocious insect, can it grow to a very long time?"

"Yes, the insect is very ferocious, it comes and goes like the wind, and if there is enough space, it can even grow up to three meters long, let alone a fish, they will attack people. Zhang Zi'an estimated according to the glimpse in the video, "The one in the fish tank doesn't look small, I estimate that it is about half a meter." ”

"What? will attack people?" Zhao welder, who had been smiling heavily, finally couldn't hold back and asked in shock.

"That's right, so...... Is there anyone else in your family who will fiddle with this fish tank besides you?" Zhang Zi'an said solemnly.

"This ......," Zhao welder thought for a while, "My daughter-in-law is disgusting with those sand silkworms and never touches them, and my son sometimes helps me tinker with them." ”

"Are there any children who will touch the water in the tank?" Zhang Zi'an asked.

"My grandson and his little friend seem to have played a game of trying their courage, and who dares to touch the sand silkworm ......" Zhao welder swallowed a mouthful of saliva and argued: "I trained them to stop playing like this." ”

"Then they won't play?" Wu Electrician's heart tightened when he heard this, because his little grandson was also one of the playmates of Zhao Welder's grandson.

Both families live very close to each other in the factory's staff compound, and every day after school, boys of the same age gather in the compound and play games with their mobile phones. Adults don't like children to play games for too long, so when they don't play, they look for other things to play.

Wu Electrician knew that his grandson would play with Zhao Welder's grandson, but he didn't expect them to play so out of line.

He knows that his grandson is very well-behaved and hates bugs, and he will not take the initiative to touch the bugs, but a little boy at this age is especially afraid of being looked down upon by his peers, and once he is ridiculed, he will often do things that he would not usually do at all......