All About Goldfish Temperature Shock Symptoms

Hi, this is your friend Clifton Ervin, the founder and chief editor of this site, Aquariumwolf. I completed my graduation in marine biology and became...Read more

Goldfishes are frail creatures who are highly sensitive to their surroundings. There are several types and variations of these fishes, and each is different from the others. Hence, they all have different requirements to maintain their health to prevent sickness or disease.

Although they are highly sensitive to their surroundings, Goldfish temperature shock symptoms are very common among them. They may even go into a coma, struggle swimming, and have rapid breathing. Moreover, there are two shocks due to water condition changes; cold and hot. And this can significantly reduce the life span of goldfish. 

Therefore, even after changing the water, you will need to keep a close eye to keep them healthy and safe. So, here in this blog, we have shortlisted all the possible goldfish temperature shock symptoms and explained how you could possibly prevent these temperature shocks.

Goldfish Temperature Shock Symptoms – All You Need To Know

Goldfishes suffer temperature shock whether the water is cold or warm. Therefore, it’s vital that you check the water’s temperature when changing it to prevent the goldfish from suffering the shock; even as little as a difference of 2-3 degrees could give them a fatal shock.

Goldfish Temperature Shock Symptoms

Bodied goldfish are wild and can endure cold water better than fancy fish. You can keep it in a pond and outdoor aquariums. However, fancy goldfish have the other side of the story. They are fragile to temperature changes (whether hot or cold) and can have significant shock symptoms.

So, here in this section, our experts have shortlisted the cold and hot water temperature shock symptoms that your goldfish is likely to experience.

Cold Water Symptoms

Slim-bodied goldfish can survive in cold water and are mainly kept outdoors. Also, there are three symptoms that fancy goldfish might go through as it can’t adapt to cold temperatures.

1. Visibility Lethargy

Gold Fishes are cold-blooded species, and their environment does make a difference. Therefore, they require an ideal temperature to stay active and energetic.

If you notice that the goldfish is motionless, it is possibly because the water temperature is low enough and disables them from moving.

A significant drop in temperature will lead the fish to be motionless to conserve their energy and stay lethargic.

2. Substrate Resting

There is a vast difference between regular rest and primarily rest on substrate. However, when they experience cold temperature shock, goldfish will rest on the substrate at the bottom of the tank for a long time. If this happens right after the changing water, your goldfish is suffering from a shock.

3. State of a Coma

This is the last stage, and if the goldfish is harmed due to cold water, it can turn its back down and have no activity, called a coma.

To save your fish, you must change the water temperature, and it’ll gradually return to its normal state (only if it is not dead).

Hot Temperature Shock

Here are some of the significant symptoms that your goldfishes may show due to hot temperature shock

Exhausted Appearance

Hot temperatures may force the fish to active for a more extended period. Hence, it can drain the fish out of energy, and your fish will reside at the bottom lying in the tank.

Breathing Rapidly

Whether the water is hot, the fish will constantly breathe as hot water contains less presence of oxygen. Rapid breathing means your fish is not getting enough oxygen due to water temperature changes.

So, as a result, they try to repeatedly display gill movements while trying to pass more water via them. Another behavior that your fish can show due to oxygen deficiency is actively opening and closing their mouth.

Erratic Swimming

Goldfish don’t require warm or hot water tanks, so it’s stressful for them to have such an environment. If you notice that they are constantly full of energy then it’s a sign of hot temperatures which will ultimately put stress on them.

How to Prevent Goldfish from Temperature Shock?

If you notice the shock symptoms in time, it can actually save your goldfish! So it depends on the timing and how you are responding to this issue. Here we have shortlisted ways to prevent your goldfish from temperature shocks.

Monitoring the Fish Behavior

You must monitor the goldfish before and after the changing of water procedure. It’ll assist you in quickly identifying any fishy changes and taking safety actions if you notice any fishy changes.

Treatment Tank

You must prepare the treatment tank or bowl before cleaning the fish tank. After cleaning, keep the fish in separate containers for a while. Set the water parameters to customary conditions, most importantly, the temperature.

Keep it close to the tank because if fish seem stressed or display shock symptoms, then immediately place them in a treatment tank. This method allows your fish to recover and stabilize.

The Temperature in the Main Tank

You can use a heater if the temperature is a problem. After ensuring the values, use a heater to stabilize the environment. Return the goldfish into the main tank to ensure your goldfish is stable.

However, it doesn’t always require having a treatment tank. If the symptoms are minor and the fish are stable, you shouldn’t transfer them to the treatment tank. But just in case, be ready with the treatment tank whenever you change your fish tank’s water.

You May Also Read: Can You Breed Goldfish In Saltwater?

FAQ’s

Here we have mentioned some relatable answers regarding goldfish and temperatures that you must know.

Do goldfish need a heater in the tank? 

It all depends on which type of goldfish you have. Fancy or slim-bodied, however, small fancy goldfish require a water heater to maintain a temperature ideal for them, according to 72 to 78 degrees.

On the other hand, slim-bodied goldfish don’t need a heater as they can adapt to the temperature.

How can I maintain the temperature in the tank? 

You must keep checking the temperature of your goldfish tank. You can use water or a floating thermometer for large tanks to check the temperature. And stick on thermometers for a small goldfish tank.

Can I treat my goldfish disease by adjusting tank temperature? 

Yes! If your goldfish has parasitic infections, you can treat them by adjusting the temperature. High temperature can cure some of the diseases of your goldfish, such as white spots.

But, diseases like herpes virus are manageable by lowering the temperature if you keep it around 50 to 59 degrees.

Bottom Line

So, after going through this blog, you should now know all the possible goldfish temperature shock symptoms and the ways you can prevent them from these shock-devastations.

As goldfishes are prone to environmental changes, so ensuring a stable and soothing water atmosphere is a must for you.

Hi, this is your friend Clifton Ervin, the founder and chief editor of this site, Aquariumwolf. I completed my graduation in marine biology and became an Ichthyologist. One of my favorite hobbies is aquarium keeping; therefore, I love to talk about fish keeping, breeding, food behavior, etc., and much more relevant to aquarium maintenance. I have created this site Aquariumwolf, to share my 20 years+ of experience and knowledge with all new to this journey.

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