And when Zhan Fei saw it, he continued to take out more than a dozen lower-grade spirit stones and put them on top of this large red spirit stone, the large red spirit stone was like a pigment adsorber, and it was an instant time to absorb those low-grade spirit stones into colorless, and after about thirteen or fourteen lower-grade spirit stones, a dark green fruit finally grew on the cash tree.

Sure enough, a lower-grade spirit stone can become a medium-grade spirit stone! And this ratio is still quite cost-effective, but the process is a little troublesome, and then, Zhanfei took out a large piece of medium-grade spirit stone that he had just mined, and then pasted it on the pale red spirit stone.

Next, Zhanfei saw that the color of this medium-grade spirit stone was slowly fading, and on the money tree, it was also flowering and fruiting rapidly, and one by one the crimson spirit stone fruits grew out, and it only took a moment to extract a low-grade spirit stone, but in the face of this medium-grade spirit stone, the money tree was a little difficult.

After about two minutes, this large piece of medium-grade spirit stone finally became colorless, and on top of the fruit of the cash tree, there were also more than thirty crimson high-grade spirit stone fruits, and then there were high-grade spirit stones.

When Zhan Fei took out a piece of high-grade spirit stone and put it on top of this pale red spirit stone, what happened was different from before, no new fruit appeared on the cash tree, but the color of this new high-grade spirit stone was still fading rapidly, and at the same time, the color of the pale red high-grade spirit stone that had almost been drained was constantly deepening.

After a few minutes, the top-grade spirit stone had completely turned colorless, while the pale reddish top-grade spirit stone had turned a crimson color. And next. There seemed to be a cheering sound from the cash cow. And Zhanfei can probably understand what it is doing for Lu.

This cash cow lives in the magic spirit stone, and can only live on the energy of the high-grade spirit stone, and it may also have a certain degree of autonomy, when it realizes that after it drains the energy of the high-grade spirit stone, it is its death period, so it deliberately does not go to the spirit stone fruit again.

Now that the energy of this high-grade spirit stone has been replenished, it is naturally extremely happy. And then, the body of the money tree also swayed slightly, and then, the fruits that had borne before and the purple fruits on the money tree all fell from its body.

And Zhanfei was also happy to put away these spirit stones, especially those few top-grade spirit stones, Zhanfei didn't need the top-grade spirit stones for the time being, but if he could make a move, then these top-grade spirit stones were obviously the most valuable, and then, Zhanfei took out a large piece of top-grade spirit stones. Then it was attached to the high-grade spirit stone where the root system of the cash cow was hiding.

This time, the cash cow is finally starting to bear fruit again. And Zhanfei finally understood the efficiency of this cash cow, and the lower grade spirit stone will be the middle grade spirit stone, and it doesn't take time at all.

And if the medium-grade spirit stone becomes a high-grade spirit stone, it will take about ten seconds to grow a high-grade spirit stone fruit, and if the high-grade spirit stone becomes a top-grade spirit stone, it will increase tenfold on this basis, and it will take about two minutes to grow a top-grade spirit stone fruit, like the previous large piece of high-grade spirit stone, this cash cow will be fully digested and converted, and it will take more than half an hour, and it will take more than half an hour to earn twenty top-grade spirit stones, this efficiency should be good, right?

As for using the best spirit stone or even the silver liquid as nutrients to bear fruit, because it takes a long time, Yue Tianhai and his wife are afraid that it won't take long to pack up the things, so Zhanfei didn't experiment for the time being, but put this cash cow into his package and kept it, and prepared five top-grade spirit stones, ready to learn about the value of the top-grade spirit stones from Ding Ling.

These five top-grade spirit stones are all grown from a cash cow, but this cash cow is a strange tree of heaven and earth, and the shape of the fruit it grows is also extremely peculiar, it is a natural quadrangular pyramid, that is, a pyramid shape, so the fruit of the cash tree cannot give people the feeling of growing at all, but it seems to be deliberately carved, so if Zhanfei sells it, there is no need to deliberately carve it.

A few minutes later, Zhan Fei came to the outside of Ding Ling's room and said, "Miss Ding, I have something to discuss with you." ”

Hearing Zhanfei's words, Ding Ling said, "Come in." Immediately Zhan Fei pushed the door in, this Ding Ling didn't know what the reason was, he was wearing his golden armor all the time, and his face was also wearing a golden mask, even if he was alone in his room.

And then, Zhan Fei said: "Miss Ding, the value of the middle-grade spirit stone relative to the low-grade spirit stone, I already know the Dao, I want to know the Dao, the value of the high-grade spirit stone and the top-grade spirit stone?" ”

Hearing Zhanfei's words, Ding Ling said: "The lower grade spirit stone is only used by the people at the bottom of the demon world, of course, this bottom layer is also wrapped like the Moon God Chamber of Commerce;

As for the medium-grade spirit stone, it is used by some demon-level potential power and characters above the demon emperor, trading or practicing, and the lower-grade spirit stone is rarely used, as for the high-grade spirit stone, it is even rarer, and the high-grade spirit stone is generally used in transactions between demon gods.

If you have the best spirit stone at the end of the year, even the demon god may not be able to have a few, it is too rare, the medium-grade spirit stone is exchanged for the lower grade spirit stone, and very few people will change it, and the high-grade spirit stone is exchanged for the medium-grade spirit stone, because the gap between the two is not too big, and the demon god sometimes uses the medium-grade spirit stone, so there is an exchange ratio.

Although it is not fixed, but it is about between one to sixty to one to one hundred, if the best spirit stone is replaced with a quality spirit stone, it is also not changed, the quality of the aura contained in the internal force of the middle grade spirit stone is different from that of the lower grade spirit stone, and the upper grade spirit stone is no different in quality compared to the middle grade spirit stone, but the concentration is relatively high.

It is said that it is precisely because today's best spirit stones are too scarce, and today's demon gods will be so much worse in strength than the demon gods of the ancient period, every time they own and use a superb spirit stone, the strength of the demon god will be close to one point from those demon gods in ancient times, and the value of the best spirit stone, you can imagine, right? ”

Zhanfei listened and said, "I basically understand." ”

Zhanfei was also glad that he didn't directly take out those few top-grade spirit stones, but he didn't expect that the top-grade spirit stones had such great significance, something that even the demon gods had to fight for. (To be continued......)

PS: Thank you for your support!