How to adjust the pH of aquaculture water? The pH value, also known as the hydrogen ion concentration index and the pH value, is a scale of the hydrogen ion activity in the solution. In the thermodynamic standard condition, the aqueous solution with pH=7 is neutral, and the pH<7 is acidic, pH> 7 are alkaline. Generally, the pH value of ornamental fish should not exceed 8.5 below 6.5, and the most suitable range is 6.8-7.5, but there are also a few tropical ornamental fish that prefer weakly acidic water. There are two main methods for adjusting the pH value of aquaculture water: 1. Adjust acidic water (improve pH) (1) Quicklime: Generally, the concentration is 10-20 mg/L. (2) baking soda, also known as chemical name sodium bicarbonate, sodium bicarbonate, generally used 2 ~ 5 mg / liter concentration, according to the specific circumstances, every 1-3 days can be reused once, the whole pool splash The total amount can be up to 20 mg / liter, and the concentration of 25 ~ 35 mg / liter can be used for goldfish. (3) The chemical name of borax is disodium tetraborate and sodium borate. The method of use is the same as that of baking soda. (4) Combine baking soda and borax, and use a concentration of 2 to 5 mg/L in a 1:1 ratio. The advantage of the combination of the two is that it has a healing effect on the surface wound of the diseased fish, and also has a certain effect on preventing bacterial diseases, and has a certain effect on promoting the goldfish. At the same time, the inflating can also diffuse the dissolved carbon dioxide in the water into the air, so that the water body is alkaline. Of course, it is also possible to add a calcium carbonate-based material such as coral sand or shell sand to the aquarium to increase the pH by increasing the hardness of the water. 2, adjust the alkaline water body (lower pH) Generally, sodium dihydrogen phosphate is used, and sodium dihydrogen phosphate is firstly formulated into a 1% chemical solution for use, and a hundred-fold diluted phosphoric acid, hydrochloric acid, acetic acid or edible white vinegar may also be added. It should be noted that the dosage of one dose at the time of dosing should not be too large, and it should be added in several times. After each addition of the drug, the pH value should be measured with a precision pH test paper. Generally, the pH change is controlled at about 0.1 each time it is added. In addition, small water tanks can also be added with distilled water, rain or deionized water to reduce the pH of the water to achieve the purpose of reducing the pH. Small Air Hose Reel,Portable Air Hose Reel,Wall Mount Air Hose Reel,Commercial Air Hose Reel NINGBO QIKAI ENVIRONMENTAL TECHNOLOGY CO.,LTD , https://www.water-hose-reel.com
