The water in the fish tank is very clear, but there is a fishy smell, how to deal with it

The fishy smell of the water in the fish tank indicates that the fish have been sick or dead, and at this time it is necessary to disinfect it with potassium permanganate and change the water again.

Generally speaking, as long as the fish tank has a fishy smell, it must be that the fish in the fish tank is sick, and there are external injuries, so careful observation can see the changes, as the water quality gradually whitens, there will be some foam on the surface of the bathtub, resulting in insufficient dissolved oxygen in the water, and the lack of oxygen in the fish.

At this time, it is necessary to check whether there are dead fish in the corner but have not been seen, if there is such a phenomenon, scoop up the fish in time, and then pour in some potassium permanganate for disinfection, change the water after 1 hour, and then clean the filter cotton, add some antibiotics, oxytetracycline and other drugs.

In the process of fish farming, sometimes you will find that the water in the fish tank has a fishy smell. There will also be a special situation, that is, when the water in the fish tank is relatively clear, the water still exudes a fishy smell, mainly for the following two reasons:

1. Dead creatures are not fished out in time: Sometimes fish will die for various reasons, and if they are not fished out in time at this time, they will emit a fishy smell. Even though the water is relatively clear at this time, bacteria can still grow, resulting in a fishy smell.

In addition, if there are some aquatic plants in the fish tank, and these aquatic plants die but are not cleaned up in time, then it is similar to the death of fish, which will cause a fishy smell when the water is relatively clear.

2. The excrement is not decomposed in time: the excrement of fish will not decompose immediately in the water, and it will not have much impact on the clarity of the water immediately. However, they will have a fishy smell.

Especially when the fish excrement is mixed with some of the food left in the tank, the taste is very strong.

If this happens, it must be dealt with in a timely manner

1. Fish out the dead creatures in time: You can regularly observe the fish tank to see if there are dead fish or dead aquatic plants and other organisms. Once found, they need to be fished out immediately to avoid them affecting the water environment in the tank.

2. Clean up the excrement or set up a filtration system in time: If it is excrement in the fish tank, you need to clean them up by the way during the process of changing the water. In addition, it is better to have a filtration system in the fish tank.

There is moss, and there is generally a lot of moss in the grass tank, so change the water and use the medicine. There is no other way, it's not easy to do, and if you can't do it, you have to clean the tank thoroughly. If there is no grass, just fish, it's better. Change the water thoroughly, disinfect the tank, add new water, and add medicine.

Generally speaking, as long as the fish tank has a fishy smell, it must be that the fish in the fish tank is sick, and there are external injuries, so careful observation can see the changes, as the water quality gradually whitens, there will be some foam on the surface of the bathtub, resulting in insufficient dissolved oxygen in the water, and the lack of oxygen in the fish.

<> if the water in the fish tank is clear but smells fishy, it means that there is ammonia nitrogen in the water.

If the content is too high, it is necessary to change the water in time and pay attention to the cultivation of nitrifying bacteria.

Nitrifying bacteria are beneficial bacteria that convert ammonia nitrogen from water into nitrite.

And further converted into nitrate, so as to avoid fish being poisoned, has a good maintenance effect on water quality, usually in the open tank to raise water to begin to cultivate.

The water in the fish tank is very clear, but at the same time there is a fishy smell, mainly because there are dead fish or dead aquatic plants in the fish tank, which are not salvaged in time to breed a lot of bacteria, so it will lead to a fishy smell in the water, and because there is too much fish excrement in the process of raising fish, there will be insufficient nitrifying bacteria and failure to decompose in time without timely treatment, so there will also be fish odor. In addition, because the fish feces are mixed with the rest of the feed, the water will also become smelly. Friends who raise fish should often clean the fish tank thoroughly, and also need to buy some special equipment to keep the fish tank without fishy smell.

The water in the fish tank is very clear, and the reason for the fishy smell is mainly because there are dead fish and stagnant aquatic plants that are not fished out in time, resulting in bacterial reproduction, and because the fish excrement is too much and does not decompose in time, it will also lead to fishy odor.

If there is a fishy smell but the water is very clear in the fish tank, it may be because of the dead fish or dead aquatic plants in the tank, or a large amount of excrement in the fish tank has not been treated in time, then the fish tank will have a clear water but fishy smell.

If in the process of raising fish, the water in the fish tank is very clear but has a fishy smell, it may be because there are dead fish or dead aquatic plants in the fish tank, which are not salvaged in time and breed a large number of bacteria.

Or in the process of raising fish, the fish excrement in the fish tank is too much, which is not treated in time, and the nitrifying bacteria cannot decompose the excrement in time, so it will also cause the fishy smell in the fish tank.

Therefore, in the process of raising fish, it is necessary to clean the fish tank regularly and replace the water in the tank to ensure that the fish have a good living space, otherwise the bacteria in the fish tank will multiply too much, and the fish will easily get sick or even die.

If the water in the fish tank smells fishy, you need to change the water in the fish tank immediately. The fishy smell in the water is mainly due to the decomposition of organic matter to produce a large amount of ammonia nitrogen, which is not only unpleasant, but also affects the health of the fish, causes certain poison to them, and even leads to the mass death of the fish. The content of ammonia nitrogen in the water can be reduced by changing the water, and attention should be paid to cultivating nitrifying bacteria during the daily feeding process, which can also avoid the fishy smell of the water.

If the water in the fish tank smells fishy, you need to change the water in the fish tank immediately. The fishy smell in the water is mainly due to the decomposition of organic matter to produce a large amount of ammonia nitrogen, which is not only unpleasant, but also affects the health of the fish, causes certain poison to them, and even leads to the mass death of the fish. The content of ammonia nitrogen in the water can be reduced by changing the water, and attention should be paid to cultivating nitrifying bacteria during the daily feeding process, which can also avoid the fishy smell of the water.

1. Too many fish: The reason why the water in the fish tank has a fishy smell is because there are too many fish, and the fish will excrete in addition to some secretions, which will lead to the deterioration of water quality. The best way to solve this problem is to keep a few fewer fish, or change to a larger tank, which can also reduce the density.

2. Large amount of feeding: If you usually feed too much food, it will also make the water smell fishy. In view of this situation, it is necessary to reduce feeding, and feed a small amount many times a day, and ensure that the fish are eaten in about 3 minutes after each feeding, and there is no residual bait left.

3. Too little water change: the water needs to be changed in the daily feeding process, and if the water change is too little, the water quality will still deteriorate, resulting in some fishy smell. In this case, it is necessary to increase the amount of water exchange, or shorten the water change cycle, but the shortest time should be changed once every three days, and the maximum amount should not exceed one-third at a time.

The solutions to the fishy smell of fish tank water are: strengthen filtration, add activated carbon, change water frequently, reduce feeding, clean the fish tank filtration system, etc.

1. Strengthen filtration

If your fish tank or fish pond is not well filtered and the nitrification system is not perfect, it will cause a lot of ammonia gas (released by fish excrement or food residue) to accumulate in the fish tank, and if there is a foul smell, it is very serious and may cause your fish to die. In view of this phenomenon, it is necessary to strengthen filtration, improve the nitrification system, and place enough filter cotton and glass rings.

2. Add activated carbon

Add activated carbon to the filter material, and it is better to pack a package of activated carbon for aquarium, clean it in advance and then filter it into the fish tank. After a few months, it will need to be withdrawn or replaced with a new one. Activated charcoal has the effect of deodorizing and adsorbing pigments.

3. Change the water frequently

If there is a peculiar smell caused by too many fish farming, then reduce the density and then change the water frequently to improve. It is to change the water by one-third every 3-7 days. To change the water, you must change the tap water at the same temperature as the fish tank, and the temperature difference should not exceed 3 degrees, preferably the tap water that has been dried.

4. Reduce feeding

Reduce the amount of feeding, the standard is 2 times a day and eat in 5 minutes each time, you can reduce the feeding once a day and eat in 2 minutes each time.

5. Clean the fish tank filtration system

Clean the fish tank filtration system, wash one half of it first, and then the other half a week later to avoid the collapse of the nitrifying bacterial flora.

It is normal for the fish tank water to have a faint fishy smell. Fish will have a little fishy smell, as long as the taste is not strong and the water is not turbid, there is no problem. If the water is turbid, it means that there is a problem with the water quality, and it may be that the ammonia nitrogen content exceeds the standard, which will cause poison to the fish, so it is necessary to change the water regularly to improve, or establish a good nitrification system, and you can also consider planting some aquatic plants.

It is normal for the fish tank water to have a faint fishy smell. Fish will have a little fishy smell, as long as the taste is not strong and the water is not turbid, there is no problem. If the water is turbid, it means that there is a problem with the water quality, and it may be that the ammonia nitrogen content exceeds the standard, which will cause poison to the fish, so it is necessary to change the water regularly to improve, or establish a good nitrification system, and you can also consider planting some aquatic plants.

1. Change the water regularly: If the fish tank is fishy, the best way is to change the water regularly. Changing the water is a necessary step in fish farming, not only to improve water quality, but also to increase dissolved oxygen, which is very beneficial to the health of the fish.

The interval of water changes is usually one week, and the maximum number of changes should not exceed one-third at a time.

2. Supplemental oxygen: If there are a large number of anaerobic bacteria at the bottom of the fish tank, it will also cause the water to smell fishy, and what needs to be done at this time is to supplement oxygen to inhibit their growth. The easiest way to fill oxygen is to use an oxygen pump to lead the outlet pipe to the cylinder, and open it for 24 hours.

3. Reduce feeding: There are too many organic matter in the water, and ammonia nitrogen is produced after decomposition, which is the main fishy smell, and organic matter is the fish food we usually feed, by reducing feeding, it can also reduce the fishy smell, and at the same time curb the deterioration of water quality.