Choose and buy a ground floor filters (say again: Sandy soil is layer filter, rock-bottom filter of type of billow board, motherboard) although expenditure is not much, do not need effectively to maintain particularly again already. But, if have any accident, the consequence that cause is unimaginable. Come out in home from 1988 when this kind of filter when, aquatic animals lover just complies with blindly advertisement, know nothing about its operation principle at all. After the use that passes period of time, the problem appears ceaselessly, made additional water pollution to it next, make the assessment that waits into fish death secondhand. Actually, because lover of most aquatic animals knows the operation skill that ground floor filters and economic value not quite,the cause that causes this kind of undesirable consequence is and cause.
The main function that ground floor filters is to offer biology sex to filter efficiency. In nature, no matter be in marine or it is laky, two kinds of nitrogen change style of bacterial earmark biology corrupt process, water medium ammoniac element nitrogen is turned and form a nitrogen to change a loop.
The first kind of nitrogen changes a bacterium, english calls: Nitrosomonas, main effect is the oxygen portion in using water the nitrite of ammoniac element translate into of will corrupt biology or plant institute generation, but because nitrite is mixed,harmful material is like ammoniac element, accordingly, another kind of English calls: The nitrogen of Nitrobacter changes a bacterium nitrite reductive make salt of hurtless nitric acid. Later, become plant and algal system to build alimental main agency.
It is nitrogen changes circular course likewise, undertake in ocean and undertaking in aquatic animals box have great difference. Because marine area is large, fish density is small, because this collected a large number of nitrogen,change a bacterium to be in seawater. Contrary, because area of aquatic animals box is small, fish density is high, reduced bacterial collect articles into a volume secondhand, unless control the amount that raises fish painstakingly, cannot find out the good plan that increases a bacterium otherwise.
Once somebody is used filter media makes land of bacterial bacterium breed, but because use extremely frequent easy cause media damage, reduced bacterial amount secondhand. In the time that breeds in media afresh in the bacterium, the content of the ammonia in water and nitrite may rise consequently, cause the harm that goes up somehow to fish and other live thing.
This kind of case often appears in the initial stage that new crock establishs, in time of first number week, because the bacterium is insufficient, the content of ammonia and nitrite rises in succession, if increases biology amount to be able to appear again at this moment new crock syndrome shape, cause halfway biology death.
Filter to offer good biology sex means, the effect is used in the choice remarkable but the trickle type living things with higher price filters besides, lover of some aquatic animals chose larger ground floor to filter, it is by several the hardpan of different measurement is comprised, the grit with lesser grain is in most top layer, bigger grain park is bottom, grit level accumulates Yue Xiaoyue to be able to collect nitrogen to change a bacterium, narrowed however the room between grit. Because the bacterium needs portion of the oxygen in a large number of water to serve as impulsion, consequently, the circumstance of the size of hardpan and current can be affected directly. Less space blocks sundry speed faster, affect flow condition and biology to filter thereby efficiency.
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