Water Temperature For Guppies: (What Is Ideal?)

guppy temperature

Guppies are tropical fish that live in warm waters in nature. In a home aquarium, Guppies flower more efficiently when the room temperature is controlled. In this article, I cover the water temperature requirements for Guppy fish, whether they need a heater or not. Let’s start Detailed guide about Guppy Temperature.

Water Temperature Range For Guppies

Guppies are incredibly cute and hardy aquarium fish, but they need certain things to survive like all animals. The main thing to take into account is the water temperature. Let’s look at fish as a whole and cover the necessary basic facts. The proper water temperature range for Guppies should be between 74 and 82 F. We’ll discuss everything you need to know about water temperature for guppies and other vital issues. We will also discuss how to heat water to the right temperature and solve possible problems.

Do guppies need a heater?

Guppy (Poecilia reticulata) is a warm water fish. During breeding, guppies prefer cooler temperatures around 74 F. As with all aquatic animals, your aquarium must have a constant temperature. Thus, the use of a heater is necessary. The heater controls the temperature in the aquarium. There is always a problem with monitoring or adjusting the water temperature manually. Your guppies will be affected whenever temperatures fluctuate. Fluctuating temperatures cause a drop in the fish’s immune system, making them more prone to disease. In the case of Guppies, some illnesses can be challenging to treat, so it’s best to avoid them.

About the Guppy Fish

Guppy is generally considered tropical fish as they live in places like Venezuela and Trinidad. The male is a very colorful fish. These fish do very well in a 5 to 10-gallon community tank. Guppies are easily fed; they will eat anything they put in their mouth. Guppies do well in waters with medium hardness and relatively neutral pH around 7.0. A good filtration system and some water changes are essential to keep these guys happy and healthy, and yes, they need a heater.

Can you keep guppies in the outside pond?

You can keep your guppies in an outdoor lake with temperatures between 60 and 65°F. A heating unit is another solution you can have to keep your tank water warm. Using an external tank heater is not easy or economical.

What type of heaters can I use to heat my tank?

When it comes to heaters, a tank can have four basic types. Submersible heaters have the best features for a starting point. This includes hanging submersible heater, subsurface heater, and filter heater. Before buying heaters, the hobbyist must understand the pros and cons. The best heater is reasonably cheap and easy to install. The size of your guppy tank determines the force of your heater; use between 2.5 and 5 watts per gallon of actual water volume in the aquarium.

guppy temperature

Submersible heater

Submersible heaters are placed under the water lines. Vertical and horizontal placements are considered the best as they allow the thermostat to determine the correct temperature; suction cups are used to secure the heater to your aquarium. Glass submersibles can be fragile and require more careful handling unlike plastic submersible heaters. They can be placed vertically, horizontally, and at any angle.

Do I need a spare aquarium heater?

Your Guppy doesn’t stand a chance in frozen water, so the fish must warm it up to survive. Spare heaters will make it easier to replace heating components if the equipment fails; it is advisable to have an extra one.

Substrate heater

A substrate heater is best suited for heating your tank if it contains live plants as it keeps the substrate warm. Substrate heaters have a resistor attached under the substrate that keeps the water warm and stable. Unlike the submersible, the heat from the substrate heater increases evenly while reducing the visual clutter of the display. If you need to change this type of heater, the tank must be disassembled; this discourages many from using it.

Filter heater

Filter heaters are suitable for large aquarium aquariums. Filter heaters are unique because they’re invisible.

Tell me the lowest water temperature that guppies can tolerate?

The ideal water temperature for guppies is 74°F to 82°F. They can survive if the temperature drops to 60°F. Guppies are tropical fish that bloom at warmer temperatures. A sudden change in water temperature translates to an unhealthy immune system, lethargy, and reproductive problems in fish. When the temperature drops below 60°F, the Guppies may not survive.

Tell me the lifespan of a Guppie?

They can survive in captivity for between 2 and 3 years. The best examples of factors that affect your Guppy’s chances of being healthy are temperature, water quality, and fish care.

Related Questions

The process in which bacteria convert ammonia to nitrite and finally to nitrate is known as the nitrogen cycle. Ammonia and nitrite can be toxic to fish. Guppies are lovely and easy to care for fish. They don’t require large spaces, so you can order a small aquarium to start with. You can breed animals for the market because their reproduction rate can be extremely fast.

How do I check my tank?

The most effective part of aquarium management is to carry out constant water changes. The water must be changed periodically every week at the very least. Your goal when cleaning the pond is to regulate the nitrogen cycle, replenish essential nutrients and minerals, and eliminate the dissolved parts of pollutants.

Ideal water temperature for guppies

Fish should be kept in temperature ranges between 70 to 82°F. Lower or higher than this opens up the possibility of a health problem. If the guppies can’t get warm, they’ll get sick.

What happens when the temperature is outside the range?

You need to know what will happen to your guppies if their tank is within or below the recommended temperature range. The first thing to remember is that Guppy is a tropical fish. They are native to warm waters. Otherwise, something else will happen if the tank is not at the correct temperature. The ideal temperature is the guppy temperature aquarium level, so be sure to use a water heater and thermometer to monitor and control the tank’s temperature.

When the temperature is higher

With a water temperature over 82° Fahrenheit, it is declared dangerously hot for the guppies. If temperatures are too high, this can lead to less available oxygen loading in the water and a shorter lifespan for fish.

Shorter life span

Fish will have a lower life expectancy in warmer waters than under ideal water temperatures. The high water temperature causes some problems, such as low oxygen availability.

guppy temperature

When the temperature is lower

Fry can handle temperatures below 70 F better than adults. Many difficulties can be caused by the temperature being below recommended levels. In addition to slowing the growth rate, the low temperature can also leave the fish lethargic at the bottom of the aquarium and swimming slowly.

Slow growth rate

Slow growth rates are one of the things that happen to fish kept in low temperatures. Guppies are stunning and colorful fish as adults. If this growth delay occurs, the temperature must be adjusted significantly if the fingerlings grow faster in other tanks.

Less activity

Fish like guppies are cold-blooded, so they require some external heat source to keep them warm. If they’re cold, they won’t be as active as when things were warmer and more comfortable. This could mean that the fish will die.

Increase in diseases

Therefore, to ensure the healthy growth of the fish, you must always keep the water temperature constant and ideal. Guppies are hardy fish, but they usually get the disease when the water is too hot or cold or fluctuates. Diseases can infect your entire aquarium – causing all your fish to suffer and potentially killing them.

Not enough oxygen problem

The hotter the water, the less oxygen is available and the more likely they are to suffocate. Guppy fish need oxygen to stay healthy and active. Very hot water is usually the cause that most Guppy fish are killed inside beginner aquarium tanks. When the water is too warm, the principal problem is lacking oxygen in the water. You’d like to place a spray bar in the filter output where an air agitation reaction might be on the water surface. To cool down a Guppie tank, the most popular and affordable method is an aquarium fan. This aquarium fan has a 2-speed control system that promotes cooling by 1 or 2 degrees Fahrenheit.

Breeding issues

They aren’t likely to breed, and Guppy fry can’t survive in very cold or hot water. It’s because of the low energy they have when confined to cold water. It is necessary to obtain a suitable temperature for breeding conditions.

Keep it with fish with the same water temperature range.

Keep Guppies with tank mates that live in the same temperature range so you won’t have future problems with fish exposed to high or low temperatures. Temperature is necessary for a Guppy fish to survive in the best water conditions and to reproduce correctly.

What is a suitable temperature for guppies to breed?

The water temperature should be around 77 degrees Fahrenheit. When breeding, try to use the same temperature as usual in your aquarium. Fingerlings must thrive for breeding success; this can only be achieved with the correct and stable temperature; higher temperatures lead to faster growth, and lower temperatures lead to slower growth, both of which are not desirable when breeding fish. Everything must be sized correctly.

Points to remember

If kept in cold water, Guppies in domestic aquariums will face other illnesses, such as behavioral difficulties in reproduction and growth, and suffer slowly and silently. It would be best if you did not expose them to unwanted temperatures. Therefore, keeping them in warm water without variations is the best way to provide them with a suitable habitat for optimal growth. Exposure to irregular water temperature can be fatal.


The quality aquarium heater will help keep the water temperature stable and between 72 and 82 degrees Fahrenheit. Guppies live in warmer waters. The maximum temperature that can be maintained is 84°F; that temperature is used mainly for therapeutic purposes. Check that the guppy temperature and other water parameters match that of fish in a community aquarium. I hope this article answers your questions about guppy temperature requirements and has given you some ideas of other fish that also like warm water. When choosing a fish for your community aquarium, make sure they match each other.

Top 10 Best Guppy Food For Color, Growth & Immune Support

Top 10 Best Guppy Food For Color, Growth & Immune Support

Guppies need a varied diet to ensure they get all the necessary nutrients. Here is the information you need to know so that you can get the best food and diet for your guppie.

When it comes to feeding guppies, we’re in luck because they’ll eat just about anything you feed them. However, if you want to grow beautiful and healthy guppies, you need to feed them high quality fish food. I always like to choose the best flake food from renowned brands.

Comparison Table

CustomSiteStripe ImageTitleReviewBuy
Top Performance Omega One Super Color Flakes4.7/5.0Check Price
cheapestAPI Fish Food Pellets4.7/5.0Check Price

Guppies are active schooling fish that need the right kind of food to grow and maintain a healthy immune system. They also need a lot of protein to fuel their energy!

That’s why the Best Guppy Food growth contains a blend of real proteins and ingredients to help improve color. Texture is also important. Since guppies have their mouths up, they feed on the surface. Ideal guppy food for them will float, sink slowly, and be soft and easily digestible.


Top 10 Best Food for Your Guppy Fish Growth & Colors

There are many great options when it comes to guppy foods, but there are some differences between one formula and another. See the table below to see.


Best Food for Guppy Fish Review

1. Hikari USA Tropical Fancy Guppy for Pet Health

Best Guppy Food

This Hikari guppy food is the result of extensive research on guppy habits. Among other things, eating habits, growth rates, coloring and the health of the immune system were investigated.

The result is one of the smallest granules available, containing unique ingredients that give guppies everything they need to thrive.

One of the best things about this food is the texture. It acts almost like a sponge in water, absorbs water and softens without dissolving.

This is very important because it keeps food together so that important nutrients are not lost. It sinks slowly, giving the fish plenty of time to eat before reaching the bottom of the tank. Don’t worry, what isn’t eaten will not fog the water.

This formula contains everything guppies need for their health, including linolenic acid to promote growth and stabilized vitamin C to support a healthy immune system. In addition, to improve overall conditioning, they included iodine from seaweed.

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2. Omega One Super Color Flakes

Best Guppy Food

For a guppy food with significant color boost, these Omega One flakes will do the trick.

They contain salmon skins with a high content of beta-carotene, which gives guppies a deep, intense color. Beta carotene is one of the most effective ways to promote these vibrant colors.

This formula does not contain fish meal or pre-processed proteins.

What’s in it?

Whole salmon, halibut and fresh seaweed provide guppies with real, natural fat. This food is rich in proteins, low in starch and does not cloud the water.

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3. API Fish Food Pellets

Best Guppy Food

Another great guppy food option comes from API. These granules are rich in protein to promote healthy growth and also keep your water cleaner and clearer.

If some of the fish food is not eaten, there is a concern that it will sink to the bottom and decompose, releasing harmful ammonia into the water.

However, this meal is less likely. It is formulated to sink slowly and easily digest, leaving less waste in the water.

This formula contains algae, shrimp, worms and more.

One of the best things about this is that it not only keeps guppies healthy and strong, but it also helps improve their color.

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4. Northfin Community Formula 0.5 Millimeter Pellets


Best Guppy Food

Main Ingredients: Whole Antarctic Krill Meal, High Omega 3 DHA Herring Meal, Whole Sardine Meal

Description: I am very impressed with this community formula from Northfin. The first three ingredients are very high quality protein sources.

They also have seaweed and spirulina to a good degree. This is another food that would make an excellent staple food for community fish such as guppies.

You may have to crush these kernels to get small guppies. It’s firmer than flakes, so you’ll probably need something like a mortar and pestle.

One thing about this: they sink very quickly. I would recommend feeding only a small pinch at a time. Make sure your guppies have time to come in and eat that portion and then add some more.

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5. Cobalt Aquatics Guppy Ultra Pellets

Best Guppy Food

Main Ingredients: Shrimp, Dried Spirulina Seaweed, Giant Squid Meal, Whole Anchovies, Whole Sardines

Description: This is another well-balanced food that would make an excellent staple food. I love that the main ingredients are a blend of high quality protein sources and spirulina algae.

I also like that there are a wide variety of food sources used for this food. This will help feed your fish a varied diet, all in one convenient package.

This is a very small pellet that should be good even for guppy fry.

It should be a floating pill, but some users have noticed that it sinks quickly.

I recommend feeding this only a pinch at a time and adding more when eaten. If you throw out a lot of food at once, the food will likely sink before your guppies have a chance to eat it.

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6. Omega One Color Mini Pellets

Best Guppy Food

Main Ingredients: Salmon, Halibut, Whole Herring, Cod, Shrimp

Description: This is another fantastic food from Omega 1. The main ingredients are top class.

These granules are said to be an excellent staple food, rich in aquatic proteins that fish can digest easily.

There is algae in this formulation, but you may want to supplement with some foods higher in spirulina and / or algae.

This is characterized as a slow sinking pellet, but in my experience “slow sinking” pellets still sink fairly quickly.

You may have to grind these kernels so that they are small enough to be eaten by the guppies.

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7. Zoo Med Spirulina 20 Flakes

Best Guppy Food

Main ingredients: salmon flour, spirulina flour, soy flour

Description: Spirulina 20 flakes are an excellent supplementary food that is rich in proteins, vitamins and minerals.

I would use this more as a treat than a staple food. It’s rich in nutrients thanks to spirulina, but it only has one protein source.

However, I recommend feeding it along with other foods several times a week as spirulina is a great color enhancer, especially for blue and green fish.

This is especially good to add to your fish’s diet if your main ingredient is low in spirulina or kelp flour.

You will need to crush the flakes so that they are small enough for the guppies to eat. They are easy to press with your fingers and in my experience they float quite well.

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8. New Life Spectrum Optimum Flakes

Best Guppy Food

NLF Optimium flakes are specially designed to promote the health and color of tropical fish. In my opinion, this is the best flake food for guppies. At least I use it daily and have very good results with your products.

This food contains krill, herring, squid, natural ingredients that help stimulate colors and develop a strong immune system.

It is rich in protein and contains all the necessary nutrients and vitamins that guppies need. It also contains garlic, which is a natural antibiotic that is really beneficial for fish health. Garlic can prevent or treat many diseases in both humans and guppies. Garlic has antioxidant, anti-cancer and antihypertensive properties.

New Life Spectrum Optimum Flakes is my first choice when it comes to guppy food, in addition to my home-grown live food.

I highly recommend this food, especially for guppy breeders.

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9. Aquacarium Tropical Flakes

Best Guppy Food

Aquacarium Tropical flakes are designed for all types of tropical fish, including guppies. It’s a great option for community tanks, as well as guppy-only tanks.

This food contains salmon, shrimp, seaweed, krill and spirulina, making it a complete diet for guppies. It contains no fillers or natural dyes, unlike most other flake foods. It is also rich in vitamins (A, D3, B1, B12, C).

While this brand may not be that popular, it produces very delicious food. What I really like about these foods is that they don’t use additives or dyes to make your food “beautiful”.

Because this food contains only natural ingredients, it is easier for the fish to digest and get more nutrients. That is nice, because they produce less waste and the water is polluted less quickly.

Its high protein content (45%) also makes it an ideal food for guppy fry.

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10. Aqueon Tropical Flakes

Best Guppy Food

Aqueon Tropical Flakes provides a balanced diet for guppies and other tropical fish. It contains natural ingredients, trace elements, minerals and vitamins that help in the development of a healthy immune system.

This food contains a higher concentration of spirulina, calendula powder and chili powder, which makes the colors of the guppies stand out well.

These flakes float to the surface longer, making it easier for guppies to consume them. Food that falls to the bottom is known to be ignored by guppy fish.

The food contains herring, wheat flour, soybeans, shrimp, gluten, dead yeast, squid, corn, garlic, spirulina, fish oil and many minerals (manganese sulphate, copper sulphate, ferrous sulphate, calcium) and vitamins (C, A, D3, B12, B6) .

Aqueon Tropical food is designed for better and faster digestion, resulting in less waste and cleaner water.

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What is the Best Guppy Food?

Our pick for best guppy food is Hikari USA Tropical Fancy Guppy for Pet Health. Because the built the formula based on extensive scientific research about growth, coloring, and immune system health, it has everything it needs to help guppies thrive.

The texture is ideal, smooth and slow sinking so the fish can digest it easily and have plenty of time to get to it before sinking to the bottom of the tank. Not to mention, it also prevents anything you don’t eat from clouding the water.


What Are High Quality Fish Food Ingredients?

Whole fish

Whole fish is pretty much the gold standard when it comes to fish food. It gives you the most useful proteins and contains all the oils that are so important to fish health.

It’s also great to see lists of things like whole shrimp or krill. It means that the whole animal was used instead of just the leftover shells and heads obtained from the shrimp meal.

Shrimp and krill also have the added benefit of enhancing color. The red pigment that makes most shrimp and krill pink can help make red, yellow and orange fish more vibrant.


Spirulina is a freshwater cyanobacterium (also called blue-green algae) that is an excellent source of vitamins and minerals. It even has some protein.

And it is easy to digest, allowing the fish to absorb more nutrients.

It also has color enhancing properties that can help make your fish more vibrant.


Kelp is a marine macro-algae that reaches enormous size. Like spirulina, seaweed is an excellent source of vitamins and minerals in a form that is easily digestible for fish.

This is a good substitute for any algae that guppies normally graze in the wild.


How Often to Feed Guppy Fish?

Adult guppies need to be fed two to three times a day. You can give them a little in the morning and a little in the evening to keep it evenly distributed.

It is important to note that guppies reproduce quickly and are carriers of life. That means that instead of laying eggs, they actually produce small swimming fish.

If you don’t separate them from the adults, the babies will quickly become a meal. Make sure your adult guppies are properly fed, especially if there are juveniles in the tank.

Another thing to consider is that baby guppies need to eat more often because they grow so quickly. They should actually eat four to eight times a day.

The best way to make sure they get the nutrition they need and to protect them from bigger, hungry adults is to separate them. This also prevents adults from getting extra food while feeding babies frequently.

If you’re worried about leaving your guppies on vacation, don’t be! Guppies can go without food for up to two weeks.

That said, if the thought of not eating fish for so long makes you feel uncomfortable, you can get a piece of food for the holidays. This is a preformed food block designed to dissolve slowly and dispense the food into the water a little at a time.


How Much to Feed Guppy Fish?

Guppies should only be fed as much food as they can eat in about two minutes with each feeding. Remember they are not big fish. They have a small stomach, but like to overeat, which can be very dangerous for fish.

If you find that your guppies seem to have a bloated or full stomach, skip the next feed and give them a little less when it comes time to feed them again. They probably won’t stop, so if you notice a problem, give them less food.

On the other hand, if you find that a large amount of food is not consumed and sinks to the bottom of the intake, it is likely that you are feeding too much. This can cause some problems. In addition to constipation of fish, making them sluggish and uncomfortable, it can also have a negative effect on the water.

While most of the guppy foods we choose are formulated so as not to cloud the water, you want to avoid accumulating in large quantities at the bottom of the tank. Ultimately, it will have negative effects.



In order for guppies to grow large and healthy, it is important to choose the right food. The right ingredients even provide an impressive color boost! Look for foods with a variety of proteins, as well as vitamins and minerals for immune system health. Omega One is also great, providing fast energy puppies with such an active lifestyle.

Remember that diets for adults and babies are different. If you plan on breeding or if it happens accidentally, babies need to eat much more often than adults. It’s best to separate them so babies can eat as often as needed without worrying about adults coming over and stealing their food or worse.

Our pick for the best guppy food is Hikari USA Tropical Fancy Guppy for Pet Health. Formulated on the basis of extensive scientific research, it not only helps guppies to grow, it also helps them develop a strong immune system and increase their color. In addition, it does not dissolve or cloud the water, and it is easy to digest, keeping the aquarium balanced and healthy.