After looking around, Xu Yi casually found something to cover the bowl, and wanted to enter the space with something.

But then Xu Yi slapped his head, found a shady place to put the big bowl down, and entered the space empty-handed.

Before, I only thought that the light would shine into the water from above, so when I designed the experiment, I only thought about the depth of the water, but I forgot that the side walls of the glass fish tank are all transparent, and the shallow water has little impact, but when I wait until the depth, I am afraid that the light through the side wall of the fish tank will be even stronger than the light projected from the top!

Therefore, at least at the stage of incubation, I have to deal with this fish tank again.

Xu Yi didn't delay much, and directly made four wooden frames that were the same size according to the size of the four sides of the fish tank, just enough to be put on the top of the fish tank, and took it to the tent and carefully put it on the top of the fish tank.

As for whether the weakening of light will affect the experiment, Xu Yi is not too worried, any life is always the most fragile when it is born, such as ultraviolet rays, and adults can only induce skin cancer if they are exposed to large doses of light for a long time, but this kind of newly hatched fish eggs, as long as the weak ultraviolet rays may cause hatching failure.

Looking at the fish tank that looked like an open wooden box, Xu Yi took the table lamp at the bedside of the bedroom and put down the windows of the tent.

After thinking about it carefully and finding that there was nothing missing, Xu Yi entered the space with a big bowl and brought it directly to the tent.

Although there were a lot of fish eggs under the fish tank, when he got them outside, Xu Yi realized that it was not much.

Even if most of the eggs were moved into the bowl by themselves, there were only three or four hundred. This is divided into four fish tanks. Each fish tank can hold about 180 pieces, which is good.

This fish is not big enough. There aren't enough fish eggs, and if you're not careful, you'll have to fail the experiment.

Xu Yi took a straw and carefully sucked out the fish eggs from the large bowl, and then stretched them into the fish tank, roughly about two centimeters per increase in water depth, and put five fish eggs on the pebbles in the middle of the fish tank.

In this way, it is possible to compare not only the hatching rate of fish eggs in space water and tap water, but also the hatching of various fish eggs under different lights.

In this way, if the number of hatching eggs is related to the depth of the water. That can also prove that this light has a strong teratogenic ability, and whether you enter the space by yourself in the future will have to find a way to protect yourself from the sun.

Of course, because the bottom of the fish tank is covered with pebbles, in order to avoid it, this work is very difficult, Xu Yi carefully operated, moving the eggs one by one and then recording them on paper.

After being busy for a while, Xu Yi moved all these fish eggs to the fish tank, and sure enough, after the last day, several fish tanks were still a long way away from the bottom without fish eggs, and the fish eggs were still too few!

Xu Yi let out a long breath. Pick up a fish tank with tap water inside and bring it to the outside with the wooden frame underneath. Xu Yi almost held his breath when he walked, saving the water in the fish tank from shaking too much, and the fish eggs shook so much that they moved the place.

After leaving the tent, Xu Yi gently put it on the workbench, and saw that the fish eggs inside did not move at all, so Xu Yi was relieved.

Then brought a fish tank with tap water, and put it next to the previous fish tank, Xu Yi returned to the tent again.

Xu Yi didn't move out of the remaining two fish tanks, but just carefully picked up a shelf and put it on the ground, turned on the flashlight function of his mobile phone, and looked inside the fish tank.

Seeing that the eggs on the pebbles in the fish tank were still crystal clear and showed no signs of being absorbed at all, he breathed a sigh of relief and moved the other one down.

In this way, if the fish tanks inside and outside the tent can hatch, it should also be able to indirectly confirm whether there is any effect on the hatching of fish eggs at different heights on the surface of the space.

Of course, if the experiment fails, wait until the next time those fish spawn.

Xu Yi thought wildly, packed up his things, and then walked out of the space.

took out his mobile phone to check the time, Xu Yi found Yan Peimin's number and dialed it directly.

Yan Peimin said that if he wants to develop tumors, he has to pick out such fish, but he doesn't know how to distinguish himself.

The phone went through, but it rang twice and was hung up. Xu Yi didn't care, or it was inconvenient for him to answer the phone now.

Within two minutes, Xu Yi's phone rang, and it was Yan Peimin.

When the phone was answered, I heard Yan Peimin ask himself with a smile: "Third child, why do you have time to call? The fat man just asked me to ask you if you have anything delicious again." ”

However, Xu Yi's cake last time was really good, in fact, not only the fat man, but also a few people occasionally thought about it, but everyone also knew that Xu Yi had too many things, plus he had to take an exam, and he really couldn't open his mouth to let him be busy with these things.

Xu Yi smiled and said, "Uh, don't worry about that foodie, he won't give up treatment again and start sleeping lazy, right?"

Yan Peimin said with a smile: "Leak leak, or say that love is the first driving force to promote the change of the world, or if it weren't for the fat people, I'm afraid we would all have to nest in the dormitory and read books today." ”

Xu Yi smiled and asked, "How do you say this?"

"There are classes in the classroom today, and the fat man ran directly to the library to occupy the table after running, or we would have no place to read today. ”

"Oh, that's pretty good. Xu Yi nodded with a smile and cut straight to the point: "Fourth, the fish I brought back have all spawned, I want to ask you how long it will take for these zebrafish to see that they have tumors?"

"How many eggs are laid?"

Xu Yi smiled and said: "It hasn't hatched yet, there may be hundreds of fish eggs, and I can't figure out the exact number." ”

"Well, that's a lot, do you want me to observe and guide it on the spot?"

"Don't talk nonsense, this is all busy with the exam, let's wait for us to finish the exam. "Where does Xu Yi dare to let Yan Peimin come over, if there is too much time to go back, it will be troublesome to explain, so he will shirk it casually.

Yan Peimin also nodded: "Most of these fish have about half a month of onset, and at this time, it is better to pick out the fish that are sick, and the experiment is just right, and those who have a late onset are basically useless." ”

"Well, then I'll pick it out and send it to you then, but this thing doesn't grow much in half a month, how can you pick it out?"

Yan Peimin said: "The basic growth is not big, less than two centimeters long, and the fish is almost translucent at this time. Except for the digestive tract, there is basically no abnormal color. If you look at the light, those fish that have been sick can see irregular dark red patches in the body, and if it is a little later, the local fish scales will fall off, and there will be lumps on the body surface or even rupture if it is really broken without medicine, it should basically be infected and hung up. ”

"Okay, I'll pick it out for you when the time comes. Xu Yi should accept it, of course, if the hatching in the space fails, he just needs to say that he will hatch it when the time comes.

The two chatted a few more words, and Xu Yi hung up the phone.

After thinking about it, Xu Yi took the map and made a look, and found that there was still time to come, so he got on the car and rode directly in the direction of the flower and bird market.

Xu Yi didn't want to go to the flower and bird market, in fact, he wanted to go to the Metrology Bureau, so that he could save a lot of time by turning around halfway.

He wanted to buy an electronic balance with high precision, and the dosage range of his electronic scale was about the same anyway, so Xu Yi went directly to the store where he bought the scale last time.

After inquiring and checking in the store, Xu Yi picked out a METTLER TOLEDO electronic balance with a capacity of 1,100 grams and an accuracy of 0.1 gram.

Although this is a low-end product, it is enough for Xu Yi to use.

After bargaining with the boss, the final price was almost twice that of the previous electronic scale, which couldn't help but make Xu Yi pout.

Then turn on the scales and ask the boss to compare them with the scales that have been tested in the store.

Finding that there was basically no error in the measurement, Xu Yi paid the money directly, put the balance directly into the backpack with the box attached, and rushed towards the food market.

As for the forced inspection, Xu Yi didn't think about it at all, and there was no need to take out this thing to use it, and there was no need to spend that unjust money at all.

When he arrived at the market, Xu Yi went directly to the store where he bought magnesium chloride last time and consulted with the boss.

The boss here is a bag of 25 kilograms, a bag is only 600 yuan, and a pound is 30 yuan.

Xu Yi didn't say much and directly asked the boss to load a kilogram for himself, but he didn't know if this thing would work, how much would he use at a time, wouldn't it be a waste to buy too much.

However, Xu Yi didn't bargain, and the boss was also a cheerful person, so for the sake of repeat customers, he only charged Xu Yi fifty yuan.

After thinking about it, Xu Yi just walked around the market, inquired about the price of ice powder seeds, and hurriedly rode back to the village.

came and went in a hurry, Xu Yi rushed to the house, and the time only took more than three hours.

I went back to the house and washed my face, after all, the weather was hot, and Xu Yi was pedaling the car as hard as he could, so he was already sweating.

However, Xu Yi didn't bother to take a shower, and went directly into the space.

At a temperature of twenty-four degrees, it would take about seven or eight days for these fish eggs to hatch, and Xu Yi had calculated that he would not take that long, so he ran this trip with confidence.

Ignoring the things, Xu Yi ran directly to the workbench and looked into the fish tank.

The water inside the fish tank is still crystal clear, and the bottom of the tank can be seen at a glance.

Xu Yi couldn't help laughing, many of the fish eggs on the pebbles under the fish tank had turned white, and it was obvious that these were fish eggs that could not be hatched.

However, in contrast, more eggs are becoming more transparent, and black dots the size of pinpoints appear on one side.

Obviously, these are fresh fish eyes! (To be continued......)