How fish die
Human causes that lead to fish death:
Do you know how fish die? There are
many human causes that
lead
to fish, and we list the most important of them below:
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| ?How do I know my fish is dying |
Agricultural waste and fertilizers:
The entry of agricultural fertilizers
into surface waters, such as lakes and streams, stimulates the growth of
microorganisms that consume the dissolved oxygen content in the water ، Which leads to suffocation of fish
and aquatic organisms as a result of low water quality, and also causes
unpleasant odors.
Throwing waste containing nitrogen
and phosphorus into waterways, such as heavy metals and pesticides, kills fish;
It also accumulates inside the water.
This
waste decomposes after a period of time and the materials decompose ، Thus reducing the oxygen level inside
the water.
These wastes also promote the growth
of algae that fish feed on, but these algae harm them, as toxins accumulate
inside the fish’s bodies ، The
presence of algae inside the water affects water quality and blocks sunlight.
Do
fish die from oxygen?
Sewage
Pollution of seawater through the
entry of sewage into it leads to the spread of some types of bacteria found in
humans, such as: Escherichia coli, which causes disease. The solids in wastewater also affect the
purity and color of the water, making it turbid and dark, which affects the
fish's ability to see around it and its ability to breathe.
Wastewater contains microorganisms,
and when they are thrown into rivers or seas, these organisms decompose and use
oxygen dissolved in the water for aerobic respiration ، This reduces the amount of oxygen
dissolved in the water, so the fish will not be able to survive.
How
do I know my fish is dying?
Will fish die in still water?
Chemical leakage:
Fish lay their eggs in shallow water
areas or in waterways. Chemical spills
such as light crude oil and petroleum products such as diesel, gasoline and jet
fuel in shallow waters kill these eggs.
Light oils and petroleum products are highly toxic to fish, especially in the ovulation stage
Natural causes that lead to fish death:
There are many natural causes that lead to the death of fish,
the most important of which we list below:
Lack of oxygen:
Lack of oxygen leads to the death of large quantities of fish, especially in the early hours of dawn, and symptoms of lack of oxygen appear, such as abnormal distribution of fish, as fish spread at the edges of the tank or its entrance.
Lack of food:
Lack of food causes fish to feel
hungry, and if this continues, it may lead to their death.
Fish can live from 3 to 7 days without eating ، Some species may last for two weeks, thanks to their body mass. And he has a sufficient amount of fat.
Aging:
Aging is one of the natural causes that lead to the death of fish, and some signs appear that indicate that the fish has reached old age, such as losing weight, eating less food, and puffiness around the eyes ، Their bodies change color, fish float on their sides, and eventually develop breathing problems.
Disease:
Fish are sometimes exposed to
parasites, including: tapeworms, roundworms, or leeches, or they may be exposed
to viruses or bacteria that cause the death of fish, and they usually occur in
fish farm ponds ، This
leads to the death of large numbers of fish.
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signs
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Fish.
Some symptoms that indicate fish disease usually appear, such as: loss of appetite, lethargy, lack of activity, or the appearance of unusual behavior, in addition to the appearance of visible ulcers or bleeding ، Or small black or white spots, etc. In this case, it must be treated in designated basins. Under supervision and control.
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Causes of death of ornamental fish in the aquarium:
There are several reasons that lead to the death of ornamental fish in the aquarium, the most important of which are:
Tension and pressure:
Stress and tension are among the most
common causes of death for ornamental fish.There are several causes that lead
to stress, including: the small size of the tank and the crowded area, or the
presence of a large fish that makes it feel uncomfortable ، Or the fish constantly swims up and
down, making it appear stuck in the tank.
my
water tests perfect but my fish keep dying
what causes fish to die suddenly in aquarium
Inappropriate aquarium size:
The aquarium must be chosen in a size appropriate to the place in which it will be placed.Accordingly, the fish that will live inside it can be chosen, but if you place fish of inappropriate sizes in the aquarium, this leads to its presence.
Death.
Inadequacy of fish species inside the aquarium with each other:
Some fish species are aggressive and
chase other fish, so they must be combined with fish species that can defend
themselves, for example.
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Inappropriate water specifications:
Water with healthy properties must be
provided to preserve the life of ornamental fish, and to avoid early death of
fish, strips must be provided to check nitrates, ammonia, water pH, etc.
Overeating fish:
Only one meal a day should be served and the fish will eat it within a few minutes.Good quality should be sought, several types should be used, and switching between them.
Do not clean aquariums regularly:
The aquarium should be cleaned monthly, and it takes 30 to 60 minutes to clean.
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With my best wishes
