Guppy Care Guide: What is the Maximum Water Temperature?
- May 30, 2022
- Anshika Mishra
- 802 0 0
In aquariums, guppy fish thrive best in environments where the temperature is controlled, sudden changes are not a risk, and the stability of water parameters is guaranteed.
If it’s your first time keeping guppy fish, you’re probably researching their water requirements and the ideal temperature range for guppies.
Guppies are tropical fish that like warm water and live in warm waters in the wild, but which is the maximum water temperature for keeping guppies? And what else should you know about guppy aquarium temperature conditions?
In this article, we will discuss the water temperature requirements of guppy fish, whether they need a heater or not, and give you a few examples of fish that enjoy warmer waters as explained by the Guppy Channel.
Guppy Maximum Water Temperature
Guppy fish will tolerate water at up to 90 °F (32 °C), but never for a prolonged time if the water is well aerated because the warmer the water, the lower the oxygen level in it.
And oxygen is essential for fish too, especially guppies that enjoy well-oxygenated waters.
However, in the case of some guppy diseases, raising the temperature to 86 °F-90 °F will shorten the recovery period and help your guppy fish heal faster.
Usually, guppy disease remedies that recommend raising the temperature will suggest doing it for a week or so and not longer.
I also wouldn’t recommend going anywhere above 90 °F because water that warm can no longer hold oxygen, and you risk depriving your fish of valuable oxygen.
Even when you raise the temperature to 90 °F, keep the water well circulated and aerated by installing an air pump into your tank to help drive more oxygen into the water.
The air pump should not be noisy and should consider the size of your aquarium, so it can efficiently circulate the water.
You should also perform regular water changes to dilute toxins and replenish the water in your guppy aquarium.
The takeaway here is that any temperature outside the ideal temperature range for guppy fish will create problems and eventually result in their death.
Guppy fish tanks also require a filter system, which benefits from clearing the water of debris and decaying plant matter, aiding in removing toxins.
Do Guppies Need a Heater?
We’ve established that guppies need a filter system and preferably an air pump, but do they also need a heater? Or they’ll be fine without one?
It depends. If you’re raising guppies in a tropical region of the world, with high temperatures all year round, you’re fine without a heater, whether you’re keeping your guppy fish indoors or in outdoor ponds.
This, of course, if the temperature does not drop below 68 °F (20 °C) in the winter. If it does, you need a heater, even if you’re keeping your guppy fish indoors.
If you want to keep guppies in outdoor ponds and live in a temperate climate, you can still do so, but only during late spring and the summer.
Even if your house is well heated, the air temperature in your home may not always be stable, and guppies need stable temperatures.
Fluctuating temperatures in guppy tanks can become a huge problem and cause diseases and even death.
You may think that simply heating your room to a comfortable temperature is enough. But unfortunately, the air warms up faster than water, and the water in the aquarium will not be as warm as the air temperature in your home.
In this context, you will need a heater for your aquarium to warm the water to the required temperature range for guppies and keep the temperature stable.
When it comes to aquarium heaters, the choices are many. Still, beyond quality and pricing, you should also pick the correct heater size to make sure water is being warmed efficiently.
So, here’s a good rule to go by 5 watts per gallon of water volume. By following this rule, you can ensure that the water in your aquarium is kept at the required temperature.
Undersizing the heater will lead to inefficiencies as the heater won’t be able warm the water to the required temperature.
With all this talk about the ideal temperature or the optimal temperature range for guppies, let’s see which is the best range for guppy fish?
Ideal Water Temperature for Guppies
Guppy fish should be kept in water in the 72-82 °F (22-28 °C) temperature range. Falling below or above this range either suddenly or for prolonged periods opens the way to health issues.
So, if there are fluctuations in the temperature or guppy fish are kept at temperatures outside of their comfort zone, they’ll become sick to the point where they can even die.
Suppose you don’t want to invest in an aquarium heater for your guppy fish. Instead, it would be best to consider fish that enjoy colder water temperatures, such as goldfish, zebra danios, pearl danios, green barbs, etc.
These fish can be kept or quickly adapt to aquariums without a heater.
If you’re willing to invest in an aquarium heater, guppies are not the only ones that enjoy warmer water.
There is many other fish that have a preference for warmer water.
Fish that Can Tolerate Warmer Water
The most common fish that either enjoy warmer water or can adapt to warmer water temperatures include:
– Swordtails
Swordtails are exciting to fish that aren’t very demanding. They enjoy the water with temperatures ranging between 72°F- 78°F (22 to 26 °С) and should be kept in spacious tanks with lots of swimming space as they grow quite large (4 inches on average).
The female to male swordtail fish ratio in the aquarium should be 1:3, that is, one male to 2-to 3 females; otherwise, female fish will get stressed out.
Swordtails are generally peaceful fish, although they can be aggressive towards other males of their species, so be on the lookout for signs of aggression.
If you have a smaller aquarium, don’t keep more than one male with females as they’ll both stress out females and compete for female swordtails.
– Platies
Available in multiple colors and patterns, platies are unpretentious and highly lovable fish that will feel best in water that’s between 72°F- 78°F (22 to 26 °С).
Platies are incredibly peaceful, and they can make great tank mates for various soft freshwater fish.
Platies enjoy dense vegetation in their aquarium and thrive on a varied omnivorous diet. Pick a high-quality flake food and add vegetables and live or freeze-dried foods to their diet.
They are excellent for beginner aquarists, whether in a species-only aquarium or a community fish tank.
– Mollies
Molly fish are prevalent in the aquarium trade, and most aquarists have kept molly fish at some point in their lives.
They’re peaceful, easy to please, and available in many varieties, not only color varieties but also patterns, shape, and size varieties.
Mollies are active fish that enjoy being kept in a shoal, which should be predominantly female as males will otherwise chase and stress out females.
Molly fish are tropical fish and enjoy the water in the 72-78°F range. Like guppies, they require a stable temperature and a heater in their aquarium.
– Angelfish
Angelfish are unique, slim, and tall-bodied fish with long, flowy fins. These fish grow pretty big, and because of their peculiar body shape, they need large, tall aquariums.
Angelfish require a heater in their tank, and the temperature should be kept between 76-82°F. They should be kept with fish that aren’t small enough to fit their mouths and aren’t fin-nippers.
Angelfish do not give birth to live fish. Instead, they lay eggs and hatch the eggs themselves. Unlike live-breeders, angelfish are recognized as fish with good parental skills.
While not being suited to be kept with aggressive fish, angelfish can become aggressive, too, especially when breeding.
These are just some fish that enjoy warmer water that you should consider if you have an aquarium with a heater that allows you to keep stable temperatures.
Remember that any fish kept at temperatures outside their preferred range will have issues, and few fish can adapt to different conditions.
Conclusion
Even though guppies thrive in warmer water, they have a preferred range that should be respected.
The maximum temperature they can tolerate is up to 90 °F if it’s for a short period and mainly when applied for therapeutic purposes.
A quality aquarium heater will help you keep the water temperature stable and between 72-82 °F, the ideal interval for guppy fish.
I hope my article has answered your questions about the requirements of guppy fish when it comes to temperature, and I have given you a few ideas of other fish that also enjoy warmer water.
Whenever you’re picking out fish for a community aquarium, always see if their water requirements (temperature included!) match up.
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