pH is the indicator of acidity of solution characterizing concentration of hydrogen ions. pH of "neutral" solution, that is where concentration of hydrogen ions of H+ and a hydroxyl ions of OH-is almost identical and "counterbalances" each other, is equal to 7.0. Usually rn drinking water it is close to a neutral indicator, that is to 7.0. But sometimes there is a situation when it has to be lowered. For example, in life it can be necessary if small fishes in an aquarium need "sourer" environment. How it is possible to lower rn waters?
It is required to you
- - strips of indicator paper;
- - the acidified water;
- - buffer soil;
- - carbon dioxide;
- - piece of a tree.
Instruction
1. First of all, try to learn precisely what level rn is required to your pets for normal health and activity. It depends, first of all, on a type of aquarian inhabitants. It is possible to use special literature for aquarians, to look for information on the Internet or to ask a question the expert (for example, in pet-shop).
2. Get strips of indicator paper in specialized shops. Of course, they give only "rough", very rough estimate of size rn therefore it is better to measure its level by means of the special device – rn-meter. Such devices are practically in any laboratory.
3. You can lower rn aquarian water, having added to it precisely calculated amount of water with smaller level rn (acidified). As reagent-podkislitelya usually use orthophosphoric acid. Add such water in the small portions better, carefully mix and do control measurements of the turned-out level rn. Otherwise, it is easily possible to lower rn to the sizes harmful to small fishes.
4. In some pet-shops on sale there is a special buffer soil. When it is placed in water, level rn gradually decreases. Here constant control is also necessary.
5. A good way – introduction to aquarian water of carbon dioxide. You can make it by means of special devices or barrels where carbon dioxide is under pressure.
6. Sometimes the simple, but effective method will help. After preliminary processing put a piece of a tree in an aquarium. What grade of a tree for this purpose will approach what processing it will demand — find out from the expert. You thereby solve at once two problems: you will lower rn waters, and your aquarium will buy new ornament.