Can Angelfish Survive 86 Degrees?

Last updated on May 9th, 2023 at 02:45 pm

Yes, angelfish can survive in temperatures up to 86 degrees Fahrenheit, but it’s not ideal for their health and wellbeing. Angelfish are tropical fish originally from the Amazon River basin and surrounding areas. As such, they thrive in water temperatures between 76 and 82 degrees Fahrenheit.

Here are some things to keep in mind if you’re considering keeping angelfish in warmer waters:

  • High temperatures increase metabolic rates, so angelfish will require more food to sustain themselves.
  • Warmer water holds less dissolved oxygen, so you may need to increase aeration in your tank.
  • High temperatures can also compromise immune systems and make fish more susceptible to disease and parasites.
  • Angelfish may become stressed and less active in higher temperatures, potentially leading to more aggressive behavior towards tankmates.
  • While angelfish can survive in water that reaches 86 degrees Fahrenheit, it’s not their ideal habitat. It’s always best to do your research and provide the best possible living conditions for your fish to thrive.


    Pro Tips:
    1. Gradually adjust the water temperature: If you need to raise the water temperature for your angelfish, do it gradually. Quick changes can cause stress and harm to your fish.
    2. Monitor the water temperature: Use a thermometer to monitor water temperature regularly and make sure it doesn’t go beyond 86 degrees Fahrenheit.
    3. Provide shade and hiding spots: High temperatures can be stressful for angelfish, so provide shade and hiding spots in the aquarium. This will help them feel secure and safe.
    4. Increase aeration and filtration: High temperatures can decrease the oxygen level in the aquarium water, so add extra aeration and filtration systems to ensure your fish have enough oxygen.
    5. Avoid direct sunlight: Avoid placing your aquarium in direct sunlight as this can raise water temperature and cause fluctuations that can harm your angelfish.

    Can Angelfish Survive 86 Degrees?

    When it comes to keeping Angelfish as pets, one common question that comes up is how well these fish can tolerate high temperatures. This is especially important for those who live in warmer climates where temperatures can easily exceed 86 degrees Fahrenheit. In this article, we’ll explore the preferred habitat of Angelfish, the effects of high temperature on these fish, factors affecting their tolerance for heat, signs of stress and heat stroke, tips for controlling tank temperature, and best practices for caring for Angelfish in warmer climates.

    Understanding the Preferred Habitat of Angelfish

    Angelfish are freshwater fish that are native to the Amazon Basin in South America. They prefer environments with warm water temperatures of around 78-82 degrees Fahrenheit and a pH range of 6.0-7.5. Angelfish also need clean, well-oxygenated water and plenty of hiding spots like plants, caves, and driftwood. Keeping their natural habitat in mind is crucial for keeping your pet Angelfish healthy and happy.

    The Effects of High Temperature on Angelfish

    While Angelfish can tolerate some variation in temperature, long exposure to high temperatures can have negative effects on their health. Water that is too warm can lower oxygen levels in the water, causing stress and suffocation. It can also affect their metabolism, immune system, and cause overheating leading to heat stroke.

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    Factors Affecting Angelfish Tolerance for High Temperature

    Several factors can affect how well Angelfish handle high temperatures. For example:

    • Genetics: Some fish are naturally more tolerant of heat than others.
    • Age and Size: The older and larger the fish, the less heat they can handle.
    • Stress: Fish that are already stressed, sick, or injured are more susceptible to heat-related health problems.
    • Aquarium Water Volume: The smaller the tank, the faster the water can heat up, which can be dangerous for fish.
    • Aquarium Setup: The type of filtration, lighting, and other equipment used can all affect water temperature.

    Signs of Stress and Heat Stroke in Angelfish

    It’s essential to watch out for signs of stress and heat stroke in your pet Angelfish. These can include:

    • Lethargy and lack of appetite
    • Rapid breathing or gasping at the water surface
    • Red, blotchy skin
    • Erratic swimming patterns or floating on their side
    • In extreme cases, convulsions and death

    If you notice any of these symptoms, it’s crucial to take action immediately to prevent further damage or loss of life.

    Tips for Controlling Tank Temperature for Angelfish

    Fortunately, there are several ways to control your aquarium’s temperature to keep your Angelfish healthy and safe. Here are a few tips:

    • Use an Aquarium Chiller – One way to keep the water cool is by using an aquarium chiller designed to lower the water’s temperature when it gets too high.
    • Avoid Direct Sunlight – Avoid placing the tank in direct sunlight or near a heat source, which can raise the water temperature.
    • Use Aquarium Fans- Use an aquarium fan to blow air across the water surface, which can help cool the water through evaporation.
    • Reduce Lighting Time – Reducing the time your aquarium lights are on can help keep tank temperatures cooler.
    • Wet Towels- Another quick fix is to wrap the aquarium in a wet towel, which can help bring down the temperature within a few minutes.
    • Painting the Tank- Painting the outside of the tank a darker color may prevent sunlight penetration and keep the water cooler.
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    Best Practices for Caring for Angelfish in Warmer Climates

    If you live in a warmer climate or keep your tank in a room that tends to get hot, it’s essential to follow best practices for keeping your Angelfish safe and healthy. Such measures include:

    • Frequent Water Changes- Changing the tank water frequently is crucial to ensure proper oxygenation.
    • Use Quality Filtration- High-quality water filters are necessary to keep the water clean for the fish to thrive.
    • Choose Tank Mates Carefully- Avoid fish species that require cooler water, and mix with fish that need similar water conditions.
    • Monitor Water Temperature- Use a thermometer to keep tabs on water temperature regularly.
    • Dealing with High Temperatures- If heat waves occur, use one of the temperature control methods mentioned above.

    In conclusion, keeping Angelfish in warm climates is possible with the right precautions. Understanding their natural habitat, monitoring their behavior for signs of stress, and controlling water temperatures are crucial. Follow our tips and best practices, and you’ll enjoy having healthy and thriving Angelfish in your aquarium for a long time.