Mandarin fish fish breeds one catastrophe to inscribe, no matter be to cast the bait that feed work to still cast the delicacy that feed ice, many excrement and urine is discharged cannot avoid. Here cites a case simply, below condition of convention breed aquatics, mandarin fish fish eats 4-5 jin work entices or glacial delicacy grows a jin of fish, also be about to discharge 3-4 jin excrement and urine, and the moisture inside piscine body is 75% the left and right sides, namely mandarin fish fish grows a jin of flesh, dry matter of excretive excrement and urine is measured achieve 0.75-1 jin.
So large discharge capacity, cause a pond very easily inferior the aggravation of salt that exceeds mark, water quality, bring a series of breed aquatics problem (for instance chronic and toxic, branchial organization occurrence pathological changes, white branchial wait, serious when produce eruptive sex to die) .
So how does nitrite come?
Organic matter is decomposed below microbial action for young member organic matter, young member organic matter can be decomposed thoroughly below condition having oxygen for carbon dioxide and water, produce ammonia, sulfate and phosphate to wait at the same time.
Ammonia is in inferior nitrite of melt into of the oxygen below nitrify bacterium action, nitrite is extremely flabby in zoology calm, issue oxidation very quickly to become nitric acid salt in nitrify bacterium action again, this calls nitrification. Ammonia and nitric acid salt can be absorbed by alga and bacterium, change, absorb is organic matter (organism) . Nitric acid salt is in anoxic when, but reductive for nitrite, farther reductive for ammonia; Also can be in 2 oxidation nitrogen, one oxidation nitrogen is decomposed to come below nitrify bacterium instead nitrogen transgression, we say this one process reacts to turn over nitrify.
Tell simply:
Nitrogen of ammonia of → of child of metabolization of fish of ① mandarin fish is oxidized to be nitrite, the sponge of alga of → of nitric acid salt that immediately nitrite is oxidized to be low poison (when dissolved oxygen is enough)
Nitrogen of ammonia of → of bait of child of metabolization of fish of ② mandarin fish, incomplete is oxidized to be nitrite to accumulate (low dissolved oxygen)
Nitrogen of ammonia of → of bait of child of metabolization of fish of ③ mandarin fish, incomplete cannot be oxidized and accumulate (when anoxic when)
This also is why to be after typhoon of overcast and rainy, during high temperature low pressure and plum rains season and cast bait hind to appear easily in great quantities: A large number of dead aquatic plants are dead bacterium → inferior fish of mandarin fish of then of → of occurrence aggravation of system of water of saline tall → comes on.
The proposal handles way:
1, many aerator or chemistry of total pool douse add oxygen agent, make Chi Shui has enough dissolve oxygen, in order to promote nitrite to nitric acid salt change, the content of the nitrite in reducing water put oneself in another's position thereby (when urgent processing plus douse ginger + fruit acid reduces piscine shrimp to should stimulate response) ;
2, had used vitriolic hydrogen Potassium to reduce bacterium of oxygen of pool base cost and oxidation to drop one share organic matter;
3, the dissolve oxygen that should keep enough only is OK and great alleviate inferior saline noxiousness, discretion uses chemical remedy, step-down salt is the most essential still is to should lean alga, microbial to decompose (specific microbial can remove effectively inferior saline noxiousness, make piscine shrimp is photographed normally feed) .
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