As the saying goes, raising fish first raises water, the quality of fish water will affect the growth and development of fish. The purpose of changing the water is to remove the garbage, feces and remaining feed in the water. If the fish water can be kept clean, the appropriate water temperature can be adjusted, and the oxygen in the water can be increased, which can stimulate the growth and development of the fish.

1. Introduction of fish tank water

1. Raw water

It refers to untreated tap water, etc. The water temperature is often different from the water temperature in fish ponds and tanks, and there is a lot of chlorine in it, which is not conducive to the growth and development of fish.

2. New water

It is clean water that has been treated, and has the same or similar temperature as the water in the fish tank, without chlorine. 3. Chen water

It is the dirty water containing feces and dirt at the bottom of the fish pond (tank). Including the feeding water that has not been changed for a long time in the pool (tank).

4. Old water

Fish ponds and tanks are a general term for clean and tender green, green, old green or green-brown water. Tender green water is best. Most of the planktonic green algae is old water, and the planktonic green algae is a good supplementary feed for fish. The water in the old water has very little organic matter that is decomposed and decomposed, and there is more dissolved oxygen. Usually, the fish is raised in the tender green old water.

5. Back to clear water

If you find that the green water in the fish tank suddenly turns into clear water, and many green algae are sinking. The phenomenon is called backwater. This kind of water can easily cause fish to get sick, so the water needs to be changed immediately.

2. Timing for changing the water in the fish tank

1. Generally speaking

Under normal circumstances, as long as the garbage at the bottom of the fish tank together with the old water is gently sucked out with a straw every day 1/10 to 1/5, and also remove the garbage on the water surface, and slowly inject new isothermal water along the wall of the fish tank to keep the water quality of the fish tank clean. This water change method is not easy to hurt the fish, simple, fast and safe.

2. Summer and autumn seasons

The water in the fish tank has only been changed for a few days, and the color of the water quickly turns green, but the water quality is still quite clean, in order to prevent the fish from scalding Therefore, you can carefully take out all the fish in the tank, and then stir the water in the extreme poor in a spiral shape. After standing for a while, suck up 1/3 to 1/3 of the garbage in the center of the fish tank. 2, then pour in new water of equal temperature and equal volume, and put the fish back.

3. Extremely poor water quality

If the water quality is extremely poor, first fish all the fish into another tank for temporary storage, and add an oxygen booster to the tank to increase oxygen, otherwise the fish may will die. After brushing the fish tank clean, re-inject the new water at the same temperature, let it stand for a while, wait for the water temperature to be equal, and then bring the fish back to the original fish tank.