After letting the two of them rest, Tian Xu asked 401 and 402 to accompany him to practice for a while. 401 and 402 were originally about the same strength as Tian Xu, but in the face of Tian Xu's method of offsetting attack and defense, they were quickly defeated. 401's sword qi was extremely sharp, and it was originally able to cut Tian Xu's domain into pieces, but at this time, it could only cut into the field at a depth of one or two meters, and it would be extinguished by Tian Xu, and it would no longer be majestic in the past.

Seeing that his cultivation had already become a small success, Tian Xu rested for a while, left behind the group of sparring partners who had been disgraced when he practiced with him, and went to an open place on the mountain to practice the simulation of a strong electric field.

With the method, Tian Xu quickly came up with various forms of lightning attack methods, of course, this method can also be used to defend against lightning attacks. He refined some formations for himself that could send out relatively powerful thunder and lightning attacks, used these formations to attack himself, and then used the method of counteracting himself to defend.

He knew that this would not work, but there was no better way, and he couldn't find a thunderbolt cultivator who could attack him no matter what, although he regretted it, but there was no way.

The thunder and lightning he condensed, the highest voltage should be nearly one million volts, whether it is earth and stones, trees, or magical beasts, these targets used for practice were basically killed by him in seconds under the blow of his thunder and lightning, and they were not shaped.

After reaching this level, there was no room for improvement for a while, Tian Xu turned around and studied the shielding method used by Xu Jingyi, and after several efforts, he finally condensed a protective formation with ultra-high conductivity. Using the thunder and lightning formation he had refined himself, he tried to do a few offensive and defensive exercises, and the effect was not bad.

At this point, the research and cultivation of the electric field had basically completed the early goal, and Tian Xu relaxed. Thinking that he had been in the Medicine King Dou for nearly a month this time, he wanted to go out and have a look. Ziyan's cultivation has not yet come to fruition, and he doesn't bother Ziyan, and he has a medicine king fight alone.

At this time, Yao Wang Dou was still suspended in the deep sea at a depth of more than 1,000 meters, and there was silence around, no creatures appeared, and no summoning signal from the mirage was found. Tian Xu still didn't have the grasp of facing the mirage at this time, of course, there was no need to take risks, so he put away the medicine king bucket beside him, and swung his legs to float towards the shallow sea.

The location he was in at this time was a small ocean basin, surrounded by low and low submarine mountains. Tian Xu thought of the purpose of this trip, and while floating, he also swam to the north. The height of the submarine mountain in front of you is not too small, and the water depth of the ridge is only more than 200 meters, which is close to the range of shallow sea. The summit of the mountain range is quite wide, almost forming a small plateau, reaching several kilometers at its widest point.

Tian Xu walked along this mountain range, which stretched from southwest to northeast, and the surface of the mountain range was unreservedly revealed in front of his olfactory imaging, and the creatures living here were also vividly visible.

On the top of this small submarine mountain, because the water is much deeper than the surrounding water, the sunlight can penetrate a little, and a large number of giant algae grow on the bottom of the sea. The main trunks of these macroalgae are almost a foot thick, with very large leaves growing on them, which gently sway with the waves under the wash of the currents, forming a large underwater forest, where many fish, shellfish, crabs and other animals live, forming a relatively independent underwater ecosystem.

Giant algae provide food and shelter for the small animals that live here, and the larger animals are attracted to the small animals here to feed, creating a bustling and thriving scene.

Tian Xu patiently scanned everything here, hoping to find any surprises.

Soon, his earnestness paid off, and a long column of more than twenty large lobsters was migrating forward at the bottom of the sea. These lobsters are not small, it seems that there are five or six catties. Tian Xu's spiritual realm was covered in an instant, and he honestly and unceremoniously wrapped up this group of guys, and all of them were sent into the saltwater lake that had just expanded a lot in the Medicine King Bucket, and became part of his own vegetable garden.

He saw that his saltwater lake was deserted, except for the mud at the bottom, which was seawater, so he transplanted some of the giant algae and other seaweeds into it. It is believed that over time, the lake will also grow into a paradise for animals and plants.

Swimming further, he transplanted some of the plants and animals he saw, and the species in the saltwater lake gradually became richer. Later, he found a school of blue-gray salmon, and when he moved it to the saltwater lake, he suddenly realized that the tuna he had put in it did not seem to have enough food, so he found some common small and medium-sized fish such as herring, mackerel, and mackerel.

A little further, surprise came into his sight, and he saw several huge electric eels. These electric eels are much larger than the common moray eels, more than 20 centimeters in diameter at the thickest point, and more than three meters in length, with a wrinkled head that is barely visible from two small eyes, and their eyes are more like decorations, relying mainly on the sense of smell and the bioelectric field that senses prey to hunt. Tian Xu just happened to be looking for an opponent who could discharge to practice, and when he saw these guys, he went straight up.

Ordinary electric eels can emit hundreds of volts, but these giant moray eels are apparently mutated, and the electricity is even more powerful, reaching thousands of volts.

But even so, the voltage they emitted was still too low for Tian Xu, and before Tian Xu could reach his body, Tian Xu condensed the reverse voltage and easily canceled it out. Then these electric eels were collected by him into the Medicine King Bucket. Almost all of the eels don't taste bad and can easily become part of his vegetable garden.

Just as he was putting the electric eel into the Medicine King Bucket, Tian Xu suddenly felt an abnormal palpitation. This feeling was somewhat similar to when Zhou Changtian was attacked by the mirage, but it was not as strong, and he couldn't help but be careful.

The olfactory imaging was activated in all directions, and the spiritual realm also entered a state of readiness, carefully monitoring the situation around him. Soon, he identified the source of the threat.

The danger that made him feel dangerous came from the dirt below, where an animal more than a meter long and not much different from an ordinary eel was hiding. Tian Xu's olfactory imaging did not find anything abnormal about this animal, but under the effect of the field, he found that this eel's body was filled with extremely rich aura, but this aura was hidden by its special skin.

Tian Xu quickly determined that this eel was not a spirit beast, because its body exuded a cold aura unique to demonic beasts, and he could be one hundred percent sure that this was a demonic beast, and it was at least the level of the peak of the fifth level, and it might even be higher.

Tian Xu didn't dare to underestimate the enemy, he first surrounded this guy with the spiritual realm, but he didn't take the initiative to attack. He has been in contact with a lot of demonic beasts living on land, but he doesn't know much about the demonic beasts in the sea, he has only seen it once when he was in the Daotong Tribulation, and that is just a guy whose strength is between the fourth and fifth orders.

Previously, Tian Xu also felt strange, since he had encountered a demonic beast in the offshore sea, then the number of demonic beasts in this sea should not be too small, but he went to sea for a few days, and he came to the Sea of Japan so far away, and he never encountered a second one, could it be that there are very few demonic beasts in the sea? As a result, today he met this higher-level eel that was preparing to sneak attack him.

He didn't know the name of this eel demonic beast, nor did he know its characteristics and attack methods, because the demonic beast genealogy he got from Humen did not have the information of these demonic beasts in the sea.

At this time, Tian Xu was about twenty meters away from the demonic beast hidden at the bottom of the sea, he launched the domain, surrounded this guy, and prepared to capture it alive through a surprise attack, but at this moment, the demonic beast launched the first attack.

With a "crackle", a powerful voltage rose from the bottom of the sea where the eel demonic beast was located, and spread out to the surroundings through the conductive seawater, enveloping Tian Xu in it at once, and for Tian Xu to surround its spiritual realm, the demonic beast directly ignored it, and it actually wanted to use this high voltage sent by itself to directly capture his sea of knowledge through Tian Xu's domain.

The voltage emitted by this eel is different from the giant eel that has just been accepted into the Medicine King Bucket by Tian Xu, it is hundreds of thousands of volts, and this ultra-high voltage forms a strong electric field. Under the influence of the electric field, the salt concentration in the surrounding seawater has changed, forming different conductivity, and then pointing the main direction of the attack to Tian Xu.

This is a very clever attack method, which is very useful when you are in the middle of a sea with good conductivity, which can greatly save energy and concentrate the high-voltage electricity emitted in the direction of the enemy.

Tian Xu didn't expect the attack of this eel demonic beast to be so sharp, but the method of counteracting that he had just realized was not vegetarian, with his mind, a high voltage opposite to the voltage emitted by the eel was condensed and released by him, and the voltage of the attack was directly canceled out, and this eel's offensive was completely useless.

It's just that Tian Xu can't do the weightlifting like Daotong, which is light and silent. The canceling electric field he emitted was not exactly the same as that emitted by the eel, and he could only make the electric field stronger because of the enemy's leniency.

The positive and negative electric fields meet at the bottom of the sea, canceling each other out at the same time, but also forming a strong current at the place of counteraction, this current flows through the seawater for a short distance, releasing a large amount of heat, heating the seawater with a radius of more than one meter to boiling at once, and then a large ball of huge bubbles is generated from the boiling seawater, rising to the sea surface in the distance. The rising bubbles cause the surrounding sea water to rise at the same time, and the surrounding sea water automatically flows over to compensate, rolling up the sediment on the seabed, making the sea water here turbid, and the visibility of the seabed drops sharply.