Arowana yellow calendar, please.

Water is easy to raise! Chlorine in tap water is not good for fish! Clean the newly opened cylinder! Fill it with water! Filter for 2 days! Wait until the bubbles on the cylinder wall disappear! The oxygen pump is on for 24 hours. If it is biological, it is necessary to control the water temperature of HP6-7 at about 25, and add a proper amount of small edible salt for sterilization! Please don't rush to put the fish back in the aquarium! Open the bag and put it with the bag and fish! Don't let it out! Get used to the water temperature first! Slowly add a small amount of fish tank water later! Adapt to the water quality in the tank! Don't feed new fish yet! Hungry for two days! Otherwise, it is easy to get sick! Change at least 20%-30% water every week, and it is best to bask in the sun! The ammonia content should not exceed 0. 1 ppm (mg/1). Don't make the temperature and PH suddenly change, if the change suddenly leads to the sudden death of Longli fish. Test PH and other toxic substances every week to avoid countermeasures. Be careful when changing water and avoid dragon fish.

Furthermore, when raising Longli fish, you must avoid completely changing the water, otherwise it will cause harm to the fish. If you see the fins and scales of Longli fish fall off, it is caused by too much water change. You can stop changing the water, and they will recover naturally. However, the amount of water exchanged should not be too small. Too little will make the fins opaque and the eyeballs turbid, which will lead to the gills turning over.

Longli fish need a lot of light, and it is best to have 4 hours of light every day. It is also best for other Longli fish to reach 8 hours of light. Some fish lovers, such as raising red fish, like to irradiate red fish with red light to achieve better results. The best light for arowana is daylight. Long-term use of light will darken the back of arowana.

The young arowana is too big to be kept in a grass box. As big as a fish tank, the problem of filtration is more prominent. The filtering system suitable for arowana culture mainly comprises an upper filter,

External filter, upper+pumping sand filter and overflow filter. However, it should be noted that when arranging Longli fish box, you should consider arranging a water pump (surf pump), which has great advantages: first of all,

It can form a strong water flow, 2) increase the dissolved oxygen in the water, 3) more importantly, keep the dragon fish in a certain amount of exercise to keep the beautiful figure of the fish, and 4) it is also very important to avoid the dragon fish turning over its cheeks.

When the gills are turned over, they can be trimmed, and the pump motor can make the growing gills smooth during the recovery period.

This answer is plagiarized and has my own experience! It's basically the same! Do this! You can successfully raise Longli fish!