Watching your fish in their tank should be a relaxing, joyful part of your day, but what happens when you notice something is wrong with your fish?
You might notice your fish breathing fast or gasping, and you might be wondering if that could be serious.
Itโs easy to find yourself afraid for your fish at first, but itโs important to remember to keep calm while you figure out the problem.
There are a few different reasons your fish may be having trouble breathing, so letโs get down to the bottom of it quickly.
Why Is My Fish Breathing Fast?
There are multiple reasons your fish may be breathing fast, with the most common being a lack of oxygen in their tank.
Fish need air to breathe just like a human does.
Their gills filter oxygen out of the water, so it can get to their lungs and then into their bloodstream.
There are a few quick fixes to help a fish that is having trouble breathing, but the first step to fixing a problem is to identify it.
More often than not, your fishโs rapid breathing can be traced back to their environment and the water conditions.
Itโs important to avoid panicking when you notice your fish gasping.
Taking them out of their tank and placing them in unprepared water will likely only shock them, and it could do more harm than good.
Leave your fish where they are and make gradual changes to their tank.
Letโs tackle the issue of low oxygen levels first, since getting proper air to a struggling fish is crucial.
1. Low Oxygen
One of the reasons your fish may be having trouble breathing is a lack of oxygen.
When there are low oxygen levels, your fish will begin to gasp or spend a lot of time at the surface of the tank.
Active fish will become sluggish, develop a loss of appetite, and of course, begin to breathe rapidly.
Fish cannot survive for long without proper oxygen, so itโs important to act quickly.
The best thing to do is to perform a large water change and increase water movement to create better oxygen flow.
Once the low oxygen has been dealt with, itโs important to make sure it doesnโt happen again.
The top causes of low oxygen are overcrowding, elevated water temperature, a lack of water movement, and in some rare cases, live plants can be to blame.
2. Overcrowding
If you believe overcrowding is to blame for a lack of oxygen, itโs best to invest in multiple tanks and divide up your fish.
However, if you want to keep them all together, you should invest in a larger tank to house them in.
Overcrowding can also lead to numerous other issues, such as aggression, stunted growth, and various illnesses.
If youโre a breeder, it may be wise to stop the process temporarily until you have room to raise more fry.
Try not to stress your fish too much when moving them, and make sure their new tankโs conditions match their previous one.
3. A Lack of Water Movement
A lack of water movement can be solved by investing in a good filter.
A powerful filter should disturb the water enough to break any surface tension and send oxygen down into the tank where your fish need it most.
Your filter should take water from the bottom of your tank to be pushed back in at the top to increase aeration
You can use air stones to disturb the waterโs surface as well.
Air stones are attached to an external pump which will send bubbles through the water to disturb the surface and allow air in.
The actual bubbles themselves donโt fill the tank with air; itโs simply for circulation.
You may have also heard that fish swimming rapidly will aid in aeration, but while that is true, it may not be enough to properly aerate your tank.
Once the oxygen level in your tank is higher, your fish should stop gasping and return to normal, but if not, move on to the next problem that may be to blame.
4. Elevated Water Temperature
When the waterโs temperature is too high, itโs unable to hold as much oxygen.
Take the time to measure the waterโs temperature and adjust it slowly because cooling the water down too quickly could shock your fish and do more harm than good.
You can change part of your tankโs water to adjust the temperature, and once the water is at the proper temperature, itโs important to take the proper steps to keep it there.
Monitor heaters and lights that you may be using to warm the water and consider investing in a thermometer to help monitor your tankโs temperature.
Itโs important to make sure the tankโs water doesnโt get too cold, either.
Avoid placing your fishโs tank in a window, as the window will leach the heat from your fish tank and may put your fish at risk.
Keep in mind that, when adjusting water temperature, you shouldnโt go below your fishโs recommended temperature, as it could send them into shock.
If your fish are tropical, we donโt recommend lowering the temperature by much at all to avoid making your fish susceptible to sicknesses.
5. Live Plants
Finally, we move onto live plants.
Live plants should receive care, just like all the fish in your aquarium.
When live plants are placed in a tank, they require light in order to produce oxygen, so where there isnโt enough light, there likely wonโt be enough oxygen.
Keep in mind that increasing the light in your tank will directly affect your fish through temperature.
However, oxygen levels arenโt the only thing a plant can affect as there are also plants which can cause ammonia poisoning.
Ammonia Poisoning
Another, equally serious cause of gasping in fish is ammonia poisoning.
Ammonia is a toxic nitrogenous waste that is produced when organic materials begin to break down.
It can affect your fishโs gills and blood and reduce their ability to absorb oxygen.
Ammonia poisoning can be very serious if it isnโt dealt with quickly because even brief exposure to ammonia poisoning can cause gill damage.
Itโs also important to remember that, when the pH levels are thrown off, the tankโs nitrogen cycle will be affected as well.
Ammonia poisoning can occur when the wrong type of plant is submerged in water, such as bamboo.
Bamboo leaves, when fully submerged, can yellow and release ammonia into the water.
Itโs important to do thorough research on each live plant you plan on adding to your tank to make sure it belongs in the water.
Other than rapid breathing, signs of ammonia poisoning include lilac or red gills, a loss of appetite, and lethargy.
The top causes for ammonia poisoning include using tap water in an aquarium, excessive excrement, and uneaten food.
You may think that larger tanks are immune to ammonia poisoning, but that is simply not true.
Any tank can be affected; itโs all situational.
Ammonia can accumulate in the water, no matter the size of your tank, due to a combination of unsafe plants, overcrowding, or a surplus of uneaten food.
Itโs important to test your water and keep an eye on your fishโs tank between cleanings.
To avoid ammonia poisoning, be sure to clean out your tank regularly and avoid overfeeding your fish.
Even if your fish donโt have ammonia poisoning per se, any presence of ammonia is a cause for concern.
Remember that there is no safe level of ammonia.
Treating Ammonia Poisoning
If youโve tested the water for ammonia and youโre certain itโs the issue, you should begin treating your fish immediately.
Lower the pH of the water as soon as you can and consider doing a water change.
Take a moment to assess your fishโs behavior and determine whether they look distressed or not.
If they seem distressed, it may be best to use a chemical pH balancer to try to neutralize the ammonia.
Be sure to avoid adding new fish to your tank until the ammonia is under control.
After either performing multiple water changes or using a chemical pH control product, itโs advisable to test the water with a standard test kit.
If the ammonia levels are still high, excessive feedings may be to blame.
It may be necessary to put feedings on hold for a couple of days to keep uneaten food from accumulating.
If your fish are still gasping after ruling out potential ammonia poisoning, there may be an underlying illness affecting your fish.
Illness
If youโve adjusted the oxygen level in your tank and ruled out ammonia poisoning, the cause may be an illness that will require a little more care.
There are certain parasites which can affect a fishโs gills directly and potentially kill them.
Itโs best to consult a veterinarian for assistance when a parasite or other illness may be involved and directly affecting your fishโs health.
There are numerous diseases and parasites which can affect your fish, and itโs important to take any potentially affected fish to a vet or treat them in a quarantine tank.
How to Prevent Your Fish from Gasping Again
There are a few different ways to keep your fish healthy, and the best ways to keep them from gasping for air include the following.
Make sure your tank has proper aeration, and the oxygen levels are high enough to keep them healthy.
You should also make sure the tankโs pH levels are appropriate for all the species in your tank.
All that really needs to be done to keep your fish from gasping is keep their tank clean, maintain their water at the correct conditions, and be sure to only place suitable live plants in your fishโs environment.
Itโs also important to make sure there is beneficial bacteria in your tankโs filter.
Another good idea is to monitor your fish and their behaviors between water changes and while they recover from potential ammonia poisoning.
All in all, in a lot of cases, rapid breathing can be easily fixed.
Itโs just a matter of identifying the problem quickly and keeping calm while you fix it.
Breathing Clearly Now
Now you know what to do when your fish begin to gasp.
Itโs important to pay close attention to your fish and their behaviors, and itโs a good thing when fast breathing is caught early on.
Now your fish should be in better health, and you have less to worry about.
We hope your fish are doing much better now, and you enjoy the time you spend watching them in their home.
How did you solve your fishโs issue?
Do you have any tips or advice you would like to share?
Leave us a comment down below and let us knowโwe always look forward to hearing from you!
I noticed my fish breathing heavy today. I started going thru each step. I found my filter intake was clogged causing low filtering. I quickly turned off the filter took the intake tube and cleaned it. That solved my filtering issue. I could tell bubbles were going back into the water. This will be a normal maintenance for me know I am happy I found this site