Why is my fish staying in the top corner?

A fish may linger near the surface because he's trying to breathe more easily. Remember, fish breathe dissolved oxygen—not oxygen that is already combined in the H2O molecule. Naturally, these dissolved oxygen levels tend to be higher near the surface, where interaction between air and water takes place.
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Why do my fish stay in the corner?

Just like sickness, they stay in the corner because they feel vulnerable. Unfortunately, there's not much you can do for this one except wait for it to pass. Lastly, they may be doing it because there aren't enough hiding places in the tank—all fish like lots of hiding places where they can feel safe and rest.
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Why is my fish staying near the top?

Usually, your fish goes to the top when he's not getting enough oxygen. Unlike you, he uses his gills to breathe the air that's already in the water. However, in some circumstances, there's not enough oxygen in the tank for all of the fish to breathe easily.
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How do I oxygenate my fish tank?

Increasing water movement is the quickest way to increase oxygen (O2) levels in a fish tank, as it allows more O2 to dissolve and carbon dioxide (CO2) to be released. This can be easily done using an air pump, performing large water changes, manually stirring the water, or placing a fan near the aquarium.
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How do I know if my fish is dying?

Loss of appetite. Weakness or listlessness. Loss of balance or buoyancy control, floating upside down, or 'sitting' on the tank floor (most fish are normally only slightly negatively-buoyant and it takes little effort to maintain position in the water column) Erratic/spiral swimming or shimmying.
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Are your fish gasping at the top?



Why is my fish not swimming but still alive?

The impaired buoyancy in fish is caused by a malfunction of their swim bladder. When affected by Swim Bladder Disorder fish will often lose the ability to properly swim. They will float uncontrollably to the top of the aquarium, turned upside down, while still being alive.
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Why is my fish not moving but still breathing?

If fish are experiencing acute stress (i.e., gasping up at the surface, lying on the bottom and not moving, or darting around the aquarium), you can be pretty sure that the water has been poisoned in some way. Maybe cleaning sprays got into the aquarium, or something released toxins into the water.
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How do I save my dying fish?

How to Save a Sick Fish
  1. Step 1: Check Your Water Quality. Poor water quality is the #1 cause of illness and disease in fish. ...
  2. Step 2: Fix Your Water Quality. ...
  3. Step 3: Check Your Fishes' Food. ...
  4. Step 4: Call Your Veterinarian About Your Sick Fish.
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Can a stressed fish recover?

Once the panic has passed, the fish must also regain its natural balance. This can take hours or days, even after only a short period of stress. Long-term changes, such as a poor or unsuitable environment, are handled with the same initial response – an alarm message to escape.
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Why is my fish only staying in one spot?

Heat. While most quality aquarium heaters are good at disbursing heat in such a way that the water stays at a constant temperature, you may find fish hanging out on one side of the tank rather than another because they prefer the temperature.
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Do fish play dead?

Let's revisit the example of the fish playing dead. Some species play dead to fool other fish, often targeting scavengers as a food source. The Central American cichlid is a perfect example. In other species, though, this behavior might hint at a health issue.
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Why do my fish stay still?

One common cause is improper water temperature. If your fish's water is too hot or too cold, they will be very inactive. Check your heater and verify that your aquarium is at the right level. Other possible causes are overfeeding and improper water quality.
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Can I flush my dead fish down the toilet?

While your septic system and plumbing are designed for disposing of undesirable materials, dead fish are not on the list of flushable items. Septic systems are only meant to handle human waste, water and toilet paper. Plus, if it gets stuck in the pipes, a blockage or infestation could occur.
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How do I know my fish are happy?

Generally speaking, following are some of the ways you can tell if your fish are happy.
  1. They swim back and forth freely and energetically around the tank.
  2. Quite like humans, happy fish might have a vibrant glow to their skin. ...
  3. They do not appear fearful of the other fish in the tank. ...
  4. They are breathing normally.
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How do you tell if a fish is stressed?

Strange Swimming: When fish are stressed, they often develop odd swimming patterns. If your fish is swimming frantically without going anywhere, crashing at the bottom of his tank, rubbing himself on gravel or rocks, or locking his fins at his side, he may be experiencing significant stress.
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How do you destress a fish?

Ways to Reduce Fish Stress
  1. Change water frequently to keep nitrate and ammonia levels low. ...
  2. Check water temperature for consistency regularly to prevent stressful fluctuations.
  3. Provide an optimal filtration system like the Fluval Underwater Filter that captures debris and bacteria while ensuring proper oxygenation.
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What are some signs of ammonia stress in a tank?

Signs of Ammonia stress
  • Lethargy.
  • Loss of appetite.
  • Hovering at the bottom of the tank (especially for surface dwelling fish)
  • Gasping at the surface.
  • Inflamed gills.
  • Red streaks or inflammation in the fins.
  • Inflamed eyes or anus.
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What does a fish in shock look like?

Some fish succumb to pH shock immediately. Others may exhibit symptoms including thrashing, darting, gasping, swimming near the water's surface and trying to jump out of the tank. Such symptoms are the same as those that indicate toxins in the water -- either cause is serious.
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How do you play with a fish?

It's also good for your pet as it keeps them active and helps prevent boredom (yes, fish can get bored!). With patience and a little persistence, you can teach him to do things like follow your finger, eat from your hand, swim through a hoop, play soccer, and even jump out of the water or come up to be petted.
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Is it OK to turn off aquarium light at night?

Aquarium fish do not need light and it is best that you turn it off during the night. Leaving the light on can cause stress to fish as they need a period of darkness to sleep. Too much light will cause algae to rapidly grow and make your tank look dirty. So the short answer is no, do not leave your lights on.
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Do fish like when you talk to them?

Yes and no, according to fishing pro Tom Redington. Since sound doesn't travel well between air and water, loud talking or screaming will be barely noticeable to the fish underwater. They won't get spooked or scared. However, sound that occurs underwater is loud and travels fast.
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Is it cruel to flush a live fish?

Inhumane methods

There are many methods of fish euthanasia that are not considered to be humane and must not be used. These include flushing live fish down the toilet; immersion in ice or placing in the freezer, boiling, decapitation without stunning or pithing or suffocation by leaving fish out of water.
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Do fish know when another fish is dying?

The majority of the animal kingdom, including fish but not dolphins, do not have a sense of identity or self-recognition [1]. So they likely do not experience an abstract awareness of their eminent demise.
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Should I do a water change after a fish dies?

A 50–60% water change should be conducted every 5–6 weeks to prevent any type of nitrate accumulations. If a fish dies or there is an outbreak of some disease, go for a 10% water change.
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Do water changes stress fish?

The answer is that regular water changes are important for the long-term health of your fish. The dissolved wastes in the water, which are not apparent to the naked eye, won't kill the fish outright, but as wastes gradually accumulate the stress reduces their immunity to disease.
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