Aquarium Guppy Fish


Aquarium guppies are super popular because you can keep them in a smaller tank and their bio-load is small. They also happen to be filled with bright colors making them beautiful and fun to watch. This site is a resource and community devoted to these awesome fish. hello

1. Bacteria & Filtration

The most important factor to keeping any aquarium fish is having an “established” setup. This means having good bacteria that has grown in your filter and throughout your tank. If your setting up a new aquarium you can jump start the cycle by grabbing some used filter pad from someone else’s established filter. Put that dirty pad in your filter and run it for a couple hours and you should be ready for fish.

Our favorite filters are the “AquaClear” series. They have been the highest rated and top sold on the internet for quite some time. They have a super efficient design that enables the filter to pump tons of water through it while also being super quite. You can check out more reviews and info here on amazon.


2. Tropical Temperatures

Guppies are tropical fish and the water temperatures need to be in the mid 70s at minimum. When buying a heater figure on needing 5 watts of energy to heat 1 gallon of water. All Guppy fish call out for tropical water conditions of 74-82 degrees Fahrenheit. I hear about horror stories of heaters cracking and killing the fish… I always advise buying a descent name brand heater for that reason. Just look for a top rated or best seller.

EHEIM Jager Aquarium Thermostat Heater 100W
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3. Quality Food

Guppy fish are extremely easy to feed. Basic “tropical flakes” can be found at any pet store. BUT SOME brands of fish food are full of “fillers” and not very nutritional for fish. I highly advise buying one of the best brands of food. It will only be a couple dollars more in cost. I highly recommend Omega One brand.

OMEGA One Freshwater Flake 5.3oz, Yellow
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4. Tankmates & Other Fish

The most common tankmates to keep with guppies are molly fish, platies, Gouramis, and other guppies. I hear of people keeping other fish with them but you just have to watch the fish carefully. The rules can always be bent at times with some fish but its safest to stick with same temperament fish. View our list of tank mates here.


5. Water Changes

Remember this fact for all of your fishkeeping **ALL AQUARIUMS need water changes. This means you need to change a descent amount of the water in your aquarium over a certain amount of time. This isn’t going to be an entire article on water changes… but just to state how important they are to your fish’s health. The easiest way to change water in a fish aquarium is to use an “Aqueon Water Changer” They hook up to your faucet and suck the water out while also pushing new water in! Completely awesome technology!


6. Clean the Gravel

When you clean your aquarium you should always clean the gravel. It’s so important because everything sinks to the bottom in fish tanks. By cleaning the bottom your getting rid of 90% of the waste. The most common method to cleaning gravel is to use a gravel vacuum.


7. No Flower Vases

No fish should ever have to live in a space so small. Most flower vases look large enough but they equate to around one gallon of water usually. Even though these fish are small and can be put into “smaller” tanks doesn’t mean a flower vase is going to be enough space. I always advise a 5 gallon minimum.


8. Use a Light

Guppies aren’t too picky on their lighting. I would only suggest that you buy a “plugin timer” for your light so that it can turn on and off at the same time everyday. A person tends to forget here and there to shut the light off and that causes irregularity in their habitat. Were trying to replicate their natural habitat remember and if the sun doesn’t rise that day… that isn’t healthy. The type of lighting isn’t a huge deal but I would definitely use a lighting source to help them and their visibility.


9. Breeder Box

If you plan on keeping the babies your fish have then you should use a breeder box. It’s a small plastic box that you put in the aquarium and it floats. As the babies fall out of the female during birth they fall into a small section of the box that larger fish can’t get into. Here is a picture and link:

Marina Hang-On Breeding Box, Large
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10. Rinse and Repeat

When you first buy fish it’s easy to keep your interest in keeping them. Over time you will loose some interest. Make sure that you are at least still properly caring for their water and tank maintenance.


How Large Do Guppies Grow?

Female guppies grow to 2 inches and the males are a bit smaller at around 1.5 inches. Their full size will vary depending on the genes, food, nutrition and more. They are known to be small fish and get pushed around in community tanks for that reason. Be careful of larger fish trying to eat guppies. Guppies are very small fish but pack a tremendous appearance.

How Many Guppies to Keep in 10 Gallon Aquarium?

For an experienced fish keeper, I would say you could keep anywhere from 10-15 guppies in 10 gallons of water. But because your a beginner, I would advise starting small. If you figure the general rule of thumb of 1 inch of fish per every gallon of water… that puts you at around 5-8 guppies. As you progress with experience, you can keep more in one tank.

Type of Water Needed?

water for guppyYour pet store (or walmart) sells what is called “water conditioner” and you need to add this product to the water that comes out of the faucet in your household. What this conditioner does is make the water safe for the fish. Water that comes directly out of you home faucet has chemicals in it like chlorine and etc. Read this thread.

Female is Pregnant? What to Do?

It’s pretty common to come home and notice your female body looks a little different than before. That’s because she is pregnant and bearing new baby fry. Guppies are livebearers so the babies will come as livebearing fish and not eggs. Taking care of the female so that the new coming babies has a procedure. We have a great guide on pregnant females that have babies on the way too.

Fighting, Chasing, & Aggression?

Guppies are fast swimmers and they like to chase each other at times. It may seem like aggression but it’s pretty normal. Unless there are actual fins being nipped away.. then there isn’t any harm in it. Another case to beware of is NON-STOP chasing to where the fish never lets it end. What can also help to fix this is to heavily decorate your tank with plants and decor so that fish can run and hide from the bully.

Best Foods for Guppies?

Guppy fish are extremely easy to feed. A lot of the “main stream foods” sold at big box stores are NOT GOOD. Some of the bad brands of foods are full of fillers and that’s not good. I highly advise spending a couple more dollars and getting a good brand. We feed all our fish Omega One brand and it’s great stuff!

Aquarium Size Needed?

There isn’t a magic formula to how many guppies you can keep in a fish tank because there are too many variables that come into play. For instance, what other fish will you keep with them? Or the idea of adding live plants versus fake plants (makes a huge difference). The rule of thumb a lot of people use is adding 3 guppies to per 10 gallons of fish tank. So if you have a 20 gallon tank, that’s a tank size of 20 gallons. Some may disagree but it’s a general standard tank size used in the guppy fish groups.

Tank Mates for Guppy Fish?

Here is a list of some of the most common guppy tank mates:

  • Livebearers (mollies, platies, swords)
  • Gourami Fish
  • Rasboras
  • Most Tetra Fish
  • Small Species Plecos
  • Cherry Shrimp
  • Oto Catfish

Do Guppies Eat their Own Babies?

Adult guppies eat baby fry, and all guppies will take bites out of immobile or dead guppies they may encounter. You can deter the parents from eating their own young by adding a lot more plants. What I did was bought one of those multiple plant kits (fake plants) and it really helped. It gives the babies more hiding spots and more of them survive.

Water Temperature? Need Heater?

Guppies are tropical fish and the water temperatures need to be in the mid 70s at minimum. I imagine your fish are starting to be put under stress from it. Guppy fish call out for tropical water conditions of 70-78 degrees Fahrenheit. If your tank isn’t within that range constantly… then you need a heater.

Guppies in a Flower Vase?

NO, it’s not fine to keep guppies inside a flower vase. Every fish deserves more than a vase to live inside. This equation should be followed for all pet fish, 1 inch of fish equals 10 gallons of water. That means your Betta tank is too small too! No offense but you need to step up your game as far as keeping pet fish. Either buy a real fish aquarium or give up the hobby because some would even consider it animal cruelty to keep fish in that small of habitats.


Do they Need a Light?

When keeping aquarium fish, always try to imitate what their natural habitat is. For guppy fish lighting, that means stick to a real life schedule of what day and night actually are. There are tons of lights found online for super cheap now days. LED lights can save a ton of money because the light will be on for a good amount of time each day.

Average Cost of Guppies?

The average guppy that you buy at your local fish shop is going to cost a couple of U.S. dollars each. As long as your not buying rare species lines that are worth hundreds for “breeding” purposes they will be pretty cheap. And the fact that these fish breed so often makes them even easier to get for cheap. If you get into some online forums and clubs you will be able to eventually find these fish for very cheap if not even free if your willing to take baby fry.

How Long Do Guppies Live?

The average lifespan for a guppy is 1-3 years. Because these fish multiply at such a rapid pace, it causes for a short life expectancy. It’s somewhat sad but that’s how Mother Nature works with some species. Even though they don’t live super long lives they are still great fish to own and very beautiful. I would advise newcomers to raise some guppy fry as an experience because it’s super fun and educational.

Setup Tank for Guppy Fry Babies?

Your best option is to use a certain style breeder box. Fish farms use these for this exact purpose. It’s a small acrylic box that sits on the outside of your fish tank. It uses an air line to push water into the box from your tank at a very slow rate. This way, the little box doesn’t get stagnant water and it’s from the same source of water from your tank! They work brilliant for fry tank setups and you can just keep the babies in there until they are a little bigger and won’t be eaten by other fish.

Need Air Pump or Air Stone?

Having an air pump in your aquarium is a great idea. The bubbles that float to the surface create “surface agitation” and that is what creates oxygen for the fish. What a lot of people don’t know is that there are filters that run from air. You can get a sponge filter to add to the air hose and it actually sucks water into the sponge and filters it. It’s a great addition to the filter you already have.

Best Hiding Plants for Guppy Fry?

The best method for hiding your baby fish fry is to buy a grass style plant. They’re specifically designed for this purpose. When guppies (and other fish) are ready to give birth it’s instinct for them to swim to the bottom and give birth. That’s where that grass plant will be laying. Then once the babies are born they are in the plant and their success rate is much higher!

Guppies Keep Dying?

The most common problem I find is that people aren’t cycling their aquarium properly. To make things easy, you should just buy an “easy start” chemical. If your fish continuously keep dying this is probably your issue. It’s biological bacteria that jump starts your aquarium cycle. I highly advise it.


How to Breed Guppies?

If you want to learn guppy fish breeding then you will need to set up a tank that separates the fry from the adults. You can buy guppy breeding tanks for your guppies, or you build one and this can be costumed done for a variety of objectives. What your objective is will determine some of the needs in equipment and supplies.   You may decide to go to guppy breeders for the guppy fish information and to purchase fish breeding tanks, these tropical fish need care if you want healthy fish, so always try and find the best information for the breed of fish, in this case male guppy and female guppy fish.

You can start with minimal investment of time and equipment by purchasing a small breeding tank. This is a smaller plastic tank that fits in the top of your aquarium it has a V-shaped plastic “funnel”.

The female guppy is placed in the upper funnel portion when she is ready to give birth. The fry float down through the funnel but remain in the small tank enclosure separate and safe from the other adults that would eat them. They can be kept there until they are large enough to be safe.

The Results can be very rewarding. To go more in-depth in the breeding of guppies, you will want at least three tanks.  The first tank would be the breeding and display tank. Adult guppies used for breeding would be kept in this tank.  A ten gallon tank would do, but twenty is better. Male guppies can be very persistent in their attempts at mating a female guppy, especially when they are expecting can be stressed by this persistence.  For this reason it is better to have at least two females for every male guppy. Keep in mind that you do not want to overcrowd the fish either.   There is the basic rule of thumb of one inch of fish per gallon of water. It is usually safer to stick with the minimum number of fish for healthy reproduction of the guppy breeders.

The native Guppy habitats are found in South and Central America where Guppies inhabit freshwater as well as brackish environment. The Guppy has been introduced to several other parts of the world by man to control mosquito populations.

In Asia, Guppies have been deliberately introduced to many regions in an effort to decrease the amount of mosquito growth.

The Guppy is often called the “million fish” because of rate at it which they breed. Guppies are known as livebearers and this means they do give live birth to their young. A female can lay eggs up to three different times on one same sperm fertilization. Each and every pregnancy laying up to a couple hundred baby fry. This makes for very quick reproducing numbers for these fish. Even though the lifespan is not as entailed as some larger fish, they do make up in large numbers of population.

The Guppy is one of the most popular aquarium fish due to it’s easy living habitat and cosmetic beauty. Guppies give off small bio-load and waste levels so they make for a tremendous pet fish. Not two Guppies have the same coloration or design. The wide variety of hybrid breeds make these fish super popular.

These small beautiful fish can be kept in community tanks. Bottom Feeders also do great in these community tanks. Just make sure these tanks are tropical fish with heated water. You will need an aquarium heater for these setups. Check our top 20 questions posted below. Submit any questions you have for new threads here.

In the aquarium trade, you will find a broad selection of different Guppy types. You can for instance get Fantail guppy, Mosaic guppy, Veiltail guppy, Grass guppy, Lacetail guppy, Bottom and Double swordtail guppy, Lyretail guppy, Snakeskin guppy, Flagtail guppy, Peacock guppy, Long fin guppy, King Cobra guppy, Red tail guppy, Fancy guppy, Triangle tail guppy, Rounded guppy, Glass guppy and Tuxedo guppy. Guppies come in many different colors, including green, red and blue.

Guppies are often found in community aquariums, but Guppies with long and flowing fins can be harassed by fin-nippers and should not be combined with such fishes. The popular Mollies are for instance renowned for nipping fins. Guppies should ideally be kept in groups in a well planted aquarium since this will make them less shy and reduce the amount of stress. The recommended water temperature for Guppy is 75-85° F and the pH level should ideally be from 6.8 to 7.6.

Guppies are often over-fed by inexperienced aquarists since Guppies quickly learn how to beg for food at the surface. Restrict the feedings to once or twice a day and remove any food that has not been eaten within 5 minutes. Over feeding can cause health problems in Guppy and will also have an adverse effect on the water quality.

A high-quality flake food will provide your Guppies with a good dietary base, but flakes should ideally be combined with other types of food to create a more varied diet. You can for instance give your Guppies live brine shrimp, since brine shrimp is very easy to raise at home in a jar. Chopped up earthworms will also be highly appreciated.

If your Guppy gives birth to fry in the aquarium, you can feed the fry infusoria, liquid fry food, small micro worms or powdered flake food. As the fry grows older, they can eat larger and larger brine shrimp. Guppy fry should ideally be given very small servings of food and be fed more frequently than the adult fish. Feeding the fry at least 4-5 times a day is recommended.
Guppy fry are often raised in their own small aquarium since adult fish like to eat the fry. In a well planted aquarium with densely grown areas, at least a few fry from each batch will however survive even if they are kept with adult fish from the start.

Have Anything to Add?


Posted by Delilah:
Ok, so here is the story: Lemon Drop was in labor, so I figured I would make a video for the site. I started filming, and saw (and you can see too, in the video) her have one baby guppy fry that swam off. Second, after another push, a baby that was still in its egg casing (they usually break out of the egg after a second or two, so that is normal) popped out, and I did not notice anything special (until later). I use an air pump with a sponge filter in my fry tanks.

I kept filming, and just after the end of the video, I saw that two of the babies sitting at the bottom of the breeder looked different, like they were stuck together. I got close to the glass and realized that it was two babies- kind of. There were two heads, but just one body. It was a two- headed baby guppy fry, and it was alive! On a side note: has anyone ever kept snails as tank mates? Like Nerite snails or other types?

I gave my betta a good name for him (I was guessing that it was a him, couldn’t tell yet) Cerberus, as Cerberus was the first multi- headed creature I thought of. I know, the legendary Cerberus had three heads, and was a dog, but it is still a fitting name.

Cerberus is still alive, several months later. He is a bit smaller than the other guppy fish from the same batch (not much), but he is growing and seems just as happy as all the other guppies. So now you know! I will post that video as soon as I can get my darn computer running again!

Posted by Wayne:
For several years now guppy fish breeding is still one of the greatest things about the aquarium hobby that it never grows old-even when we do. ever since I first had a livebearer give birth in my tanks, and it is still a thrill. Oh, maybe not quite the same thrill when my guppies or Endlcr’s drop fry, though it’s still a marvel, Those tigers are one of the first-time species I’ve acquired in the last year.

On a light hearted note a questioned was raised: A question from a 9 year old hobbyist asks- I have a 10-gallon guppy aquarium. Can you please tell me why the fish in an aquarium don’t bump into the glass all the time? Can they sec it somehow?

Well, fish don’t actually see the glass with their eves, but they can sense that it’s there. If you look very closely at one of your guppies, you’ll notice that it has a line running along each side of its body. This is called a lateral line, and it is made up of tiny sensory pores that help fish feel what’s going on around then. What the lateral line actually does is sense pressure changes in the water-even vei), small ones-such as those caused by another fish swimming close by or a fishs own swimming vibrations bouncing back from hard objects (like roclzs or the glass walls of an aquarium). Have you ever wondered how schooling fish are able to swim so close together and move quickly as a group in different directions without bumping into one another? That’s the lateral line at work!

Posted by Hung Yiane:
Keeping fish looks very easy, and it is but we are taking the fish out of their natural environment, so we have to re-create that area for them to live a health life. The water has to be kept clean with the correct filtration and the right temperature has to be kept. The choice isn’t so important for the adult guppy, but for the fry however the filtration is a very much different. The guide explains why a sponge type filtration is the best rather than others.


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