Why can the fish bowl fall acid and how to deal with the acid after falling acid? We commonly use two kinds of biochemical filter materials, adhesive material and sintered filter.
With the filter and hollow filter as the representative, the once popular No.1 seems to be out of the historical stage because of too many fake goods. Sintered filter to ceramic ring, ceramic balls, bacteria house as a representative, has gradually been abandoned people, the only choice of reason is low, can be used in conjunction.
There are two reasons for the occurrence of acid fell, one is on the water quality deterioration due to be careless with, and the second is too worried about establishment of nitrification system, and take the initiative to add too much to the nitrifying bacteria.
The former mainly occurs in the sintered filter, because the filter most of short service life, less than half a year in fact already flashy without substance, domestic trouble and foreign invasion. The main material used for sintered filter material is kaolin. Its composition is silica and alumina. The manufacturing process is similar to that of ceramics. With the foaming technology, the porosity can reach over 60%, which is widely used and relatively safe. The disadvantage is that its internal micropores are dense and crisscrossed. Once the surface is polluted, the micropores are easily blocked, and the internal passages are virtually useless. Only the surface layer can be attached to nitrifying bacteria. The nitrifying bacteria, which are clogged in the inside, are killed by a long period of hypoxia, and the bacteria decompose the corpse to produce a large amount of acid, causing the water to fall acid.
The adhesive filter relative to the sintered filter more durable, more permeable, but it also has suddenly dropped acid embarrassment, why? Many fish friends in the first attempt to use this kind of filter, because of the long fear of nitrifying bacteria breeding cycle, in the water into a lot of artificial nitrifying bacteria. In fact, I do not know, nitrification system too far.
There are two forms of ammonia in water, namely, ammonia (NH3) and ammonium (NH4+). The sum of the two concentration is called total ammonia, ammonia is toxic and ammonium is nontoxic. Ammonia is affected by PH in water. There will be subtle changes. When PH < 7, ammonia will not happen, so fish is safe. When PH > 7, the higher the PH is, the higher the content of ammonia is, and the greater the risk of fish. Although ammonium is nontoxic, it can also be converted into ammonia under the influence of PH, so it is the mission of nitrifying bacteria to convert ammonia and ammonium. According to the change of water content and feeding density, there is a balance value nitrification system, i.e. total amount of ammonia was 0, based on this index has reached the nitrifying bacteria if too much, will accelerate the speed of nitrification, produced by nitric acid will increase the acidity of water, and a sharp decline in water solution as pressing danger only.
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