What are the water quality requirements for keeping fish, and can the water be used to water flowers?

Modern people like to pursue indoor environment decoration, and often keep some flowers, plants, ornamental fish and the like at home, which can also add vitality. So, if you want the fish to grow well, what are the requirements for the water used to keep fish? Can water that has been used to keep fish be used to water flowers?

1. What are the requirements for the water used to keep fish?

1. Well water

Well water is generally warm in winter and cool in summer, and rich in minerals, making it suitable for raising fish. Well water is divided into deep well water and shallow well water, among which shallow well water is more suitable for keeping fish. After being drawn up, well water should first be exposed to the sun for 12 to 36 hours depending on the depth of the strata, which is more beneficial to the health of the fish.

2. Spring water

Spring water is an underground warm water source. Its water quality is relatively pure, and it contains few various organic substances while having more soluble salts. Using spring water to keep fish makes them grow more slowly, and when using it, every effort should be made to ensure the water temperature is balanced.

3. Distilled water

Distilled water is characterized by containing no oxygen or very little oxygen, so it is not suitable as water for keeping fish. If you want to use it, it should be exposed to the sun until the dissolved oxygen is sufficient.

4. River and lake water

River and lake water is a natural water source. Because it is widely exposed to air and sunlight, it has a high dissolved oxygen content, a pH value between 7.0 and 8.0, and more plankton. Using these kinds of water to keep fish helps make the fish's body color vivid. However, one point is very important: it must be excellent river and lake water that has not been polluted.

5. Tap water

The most common and most convenient water for keeping fish is tap water. It is an artificial water source, used by every household, and its water quality is relatively clean, with few impurities and few bacteria and harmful substances, so it can be used to raise fish. But one thing to note is that tap water has a relatively high chloride ion content. If it is used directly to keep fish, it can easily cause poisoning, so before use there is a very important step, namely dechlorination treatment.

1. Sun-drying method: To dechlorinate by the sun-drying method, tap water must be exposed to sunlight. The exposure time depends on the chlorine gas content in the water, and generally it must be more than 48 hours. If it is an overcast day or weather with weak sunlight, a basin of tap water needs to be left for 4 to 5 days before the purpose of dechlorination can be achieved.

2. Chemical method: If a special situation arises, there is no prepared water, and tap water must be used immediately, then the chemical method must be used for dechlorination. The method is to add 2 to 3 grams of baking soda (sodium thiosulfate) to each cubic meter of tap water, stir the water slightly, and the dechlorination process can be completed in about 30 minutes.

2. Can water used to keep fish be used to water flowers?

First, the water used to keep fish is rich in nutrients. It may not have much effect on the human body, but fish excrement is very beneficial to plant growth, as it contains a certain amount of nitrogen, phosphorus and potassium.

Second, since you want to use fish-keeping water to water flowers, you also need to keep the fish-keeping water clean. For example, apart from our normal feeding of the small fish, do not add any other substances; if the water is made dirty, it can no longer be used to water plants. However, some friends have also reported that using fish-keeping water to water flowers caused yellowing leaves, but later she confirmed that it was caused by watering too much, which made the roots and stems somewhat rotted and caused the yellowing.

If everyone is still worried, you can also pour out the water used to keep fish, filter it with a strainer, and then water the flowers and plants. This method is also acceptable. Not only fish-keeping water, but also the beer we usually have left over from drinking, as well as expired yogurt, can all be diluted with water and then used to water plants and flowers. These substances are all very beneficial to plant growth.