There are two ways to adjust the pH value of the fish tank, one is natural adjustment method, and the other is chemical reagent adjustment method.Natural adjustment methods use natural things, such as olive leaves, pineapple skin, sunken wood, coral sand, etc., which can slowly change the PH of the water body, the harm to the fish is relatively small.But the chemical reagent adjustment must control the amount used, generally uses the sodium dihydrogen phosphate and the sodium bicarbonate to change the Ph.
1. Terminalia catappa leaves: Terminalia catappa leaves are the most commonly used items to lower the pH value. Collect the dried leaves, tie them up and put them in the water. When they rot slowly, they will start to release oxalic acid, humic acid, etc., thus making the water gradually acidic.Generally, after complete decay, we need to check the situation to see if we need to continue to put in.
2. Pineapple skin: Pineapple skin or pineapple meat can reduce pH.It contains organic acids, amino acids and so on, which will be released slowly when it is put into water.It should be noted that do not drop pineapple juice into it, although it can also reduce pH, but the concentration is too high, the water quality will fluctuate greatly.
3. Sunken wood: Many people are used to putting a sunken wood in fish farming, because sunken wood can reduce the pH of the water body, but it can also cause the color of the water to turn yellow, which affects the appearance, so it is often boiled for a period of time, cooled and then put in the tank.
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