Chemical indicators of seawater in a sea tank
(1) The acidic (pH) pH value indicates that the water is the level of acidic or alkaline value, when pH<7 acidic water, pH> 7 alkaline water, when pH = 7 neutral water. Because water is rich in calcium, magnesium and other alkali metal ions, water is generally slightly alkaline and more stable between pH 7.9 and 8.4.
Release time:
2020-09-03
(1) The acidic (pH) pH value indicates that the water is acidic or alkaline value, when pH <7 acidic water, pH> 7 alkaline water, when pH =
7 neutral water. Because water is rich in calcium, magnesium and other alkali metal ions, water is generally slightly alkaline and more stable between pH 7.9 and 8.4.
(2) The hardness of water is the concentration of "multivalent binding metals" dissolved in water.
The main contents include multivalent combination metals such as calcium or magnesium. The water hardness is 7-9 ° DH, can be attributed to the hard water field, the water hardness is often changed, when the aquarium water hardness decreases DH 5 -- 6, indicating the amount of carbon dioxide in the water of the cutting, the amount of calcium ions in the water is reduced.
The hardness of seawater can be measured by some special potions. In the aquarium, the stability of the pH value of the sea water to a large extent we can rely on the stability of the hardness of the sea water, that is to say, the sea water in the aquarium, pH value and hardness requirements between students in the process of economic development, there is such a dynamic buffer system for a national enterprise balance relationship management system.
(3) In the customized large-scale seawater ornamental fish box, the relationship between pH value, carbonate and carbon dioxide is very close. The COZ of invertebrates assimilated and decomposed by living single-celled insect yellow is very important. If single-celled algae and other insect yellow titanium oxycarbide are not satisfied, the decomposition of calcium carbonate will be forced to obtain necessary carbon dioxide, resulting in the decrease of carbonate p value is unstable. Therefore, we must be able to moderately increase their carbon dioxide in seawater.
In a new tank custom-built large fish tank set reminders start at 3 months without adding CO2, and once the pH of the seawater drops to 7.9 or below it is found that the added CO2 should be changed. There are generally two ways to increase carbon dioxide in a business.
① Directly affect the data input system to control carbon dioxide: that is, use and through various diffuser cylinders, carbon dioxide has a social response generator, etc.
Calcium response
②: The use of calcium carbonate reaction with gaseous carbon dioxide reaction allows the formation of water-soluble and soluble Ca(HCO})2 (calcium bicarbonate) to be absorbed directly by the organism, which then is absorbed into carbon dioxide, releasing carbon dioxide to supply single-celled zooxanthellae and other algae for photosynthesis. Custom large fish tank that in this development process we adhere to the different concentrations of calcium ions in the sea, and can be stable pH.
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