🐠 Best Fish for a 10 Gallon Tank Freshwater

A 10 gallon tank is a popular size for fish tanks. It’s the perfect size to get started with and maintain on a budget. In this blog post, we’ll talk about how many fish you can have in your 10 gallon tank and what types of fish work best with this small amount of space.

A Tank for Beginners

Many people think that the best first step into the fishkeeping hobby is a 10-gallon tank because they are inexpensive, not too big, and easy to carry home. Fish tanks of this size have many benefits; for example most kids would enjoy getting one as an educational Christmas gift (especially if their parents need help thinking about what toy might be appropriate). But it’s important to consider which types of fish should go in these small aquariums – you can’t just put any type in there! For instance angels and plecos may start out looking very small but grow up much large

Easy Care Fish

In this article, we’ll discuss the most popular fish for beginners and how to care for them. There are certain characteristics that make these particular easy-care fishes stand out from the rest of their brethren: small size (10 gallons), low activity level, nonaggressive temperaments. All species listed below will do well in a 10 gallon tank alone or with other peaceful community members. They also adapt easily to varied water conditions so no specialised care is required – they only need cold hardy food like flakes! This makes them an ideal choice even if you’re just getting

How Many Fish Will Fit?

In the world of aquariums, there are many factors that play into how much fish can be put in a tank. The size and shape of the tank is one important factor to consider when determining this; if you have an oval shaped 10-gallon tank for example, then it will only fit around two small fish per gallon. If your goal is to own more than two neon tetras at once (which could happen!), perhaps reconsider purchasing a rectangular or circular shaped 25-40 gal


A great way to keep your fish happy is through good water quality. Make sure you have a filter that has the right turnover for your tank and do 50-percent water changes at least once per week! Nitrite test kits can be very useful while cycling your aquarium, so make sure to use one every few days until it stabilizes.

A clean environment means an enjoyable time with our pets – don’t neglect their needs or they’ll end up unhappy!

One of the best ways to mature your aquarium is with a fishless cycling method. This will allow you to grow bacteria without having any risk that they’ll be harmed by ammonia and nitrite, which would put them in danger while maturing their environment. The next step? Well, add some filter media from an established filter into your new tank; this way it can help jumpstart biological filtration processes so you’re able to bring home batches of fanciful finned friends right away!

Celestial Pearl Danios

The celestial pearl danio, discovered in 2006 and only reaching one inch at maximum size, is a beautiful fish from the aquarium hobby. The deep blue metallic body with jewel-like spots and horizontal orange bands on its fins make it perfect for a 10 gallon tank because of their peaceful nature. They also prefer well planted tanks full of rocks, caves and driftwood that should be kept in schools of six or more to thrive.

Golden Dwarf Barbs

The Golden Dwarf Barb is a small, colorful fish found in the wild of Northern India and Nepal. Unlike many other freshwater fish that get up to 3 inches in size, this one only grows 1-inch long! It’s usually rich golden yellow with black markings but can be any color when it comes to breeding. These beautiful little guys are happiest living among plants like floating ones or driftwood branches where they should stay at least five strong for safety from predators (though groups as large 10 will live happily together). Even if you have a smaller 10 gallon aquarium you can keep them.

Neon Tetras

The neon tetra is one of the most popular aquarium fish. They have a vivid blue body with an iridescent red stripe that starts midway down their body. These aquatic animals are very peaceful and thrive when kept in schools, so adding 10 or more to your home tank will be beneficial for them! The average length these Tetras grow to is around 1.25 inches long – they prefer plenty of plants as well as driftwood and rocks which replicates their natural environment back where they came from: clear streams found throughout South America

Pygmy Corydoras

Pygmy Corydoras are a tiny, peaceful pet that should be kept in groups of around 10. They have an iridescent body with a horizontal black line that runs from their snout to their tail. These freshwater aquarium fish need densely planted tanks and plenty of hiding spots; you can use wide-leaved plants and driftwood to create them as well! Pygmy Corys also require sand for protection on the delicate barbels they possess. This species needs weekly partial water changes because it is so sensitive to nitrate levels due its small size (around 2 inches).

Pygmy Corydoras are a species of miniature catfish that can grow to be only 3 centimeters long. Pygmies must stay in tanks with other tiny fish like Ember Tetras and micro Rasboras, or they will not survive very well on their own.


Guppies are one of the most beginner-friendly fish because they’re so easy to care for. In fact, guppies can breed without any extra assistance from their owners! If you put them in a 10 gallon tank and have either males only or females only, they will quickly overstock your small space unless you want to set up an entire breeding tank.

Guppies are a popular fish to keep in an aquarium. They come with many different colors and thrive well when surrounded by hardy plants such as Java Ferns and Mosses, so your tank will look beautiful!

Betta Fish

Bettas (Betta splendens) are another popular freshwater aquarium fish. They come in a wide variety of vibrant colors and are very easy to care for. These creatures should be kept singularly, but if they’re peaceful enough during their time living with other fishes, then maybe consider keeping them as companions? Bettas do not mix well with species that look similar–therefore fancy guppies will turn out badly when paired up alongside these beauties! You may want to keep your bettas in small bowls or tanks containing plants and filter systems since most people who own one live this way because it’s easier than taking care of the creature all on your lonesome every day.

Dwarf Gourami

Dwarf Gourami are fish with moderate care needs that make them ideal for people who have previous experience in keeping aquariums. Males of this species can be orange-red and blue, while females on the other hand are silvery blue-gray and very faint yellow vertical stripes. Dwarf Gourami should not live near loud noises or bright lights as they will scare these timid creatures away from their environment; a dark substrate is best to display colors well, but plants need to provide cover so it does not feel too exposed for the little guys!

You could keep three Dwarf Gouramis in a 10-gallon tank, or just one with five other fish. All of the fish are peaceful and you can have an entire school!

How to choose Best Fish for a 10 Gallon Tank Freshwater

A difficult choice

You don’t know which fish to put in your aquarium ? How many ? What budget to allocate? Several species make you want? Can’t choose? This article is made for you !

While choosing the population of the aquarium is almost an art! But there is no secret … you will need to respect a few rules as well as the requirements of your fish: size of the aquarium , lifestyle , incompatibility of species , maintenance parameters , water quality , … Overall, have fun! But with respect for living beings !

There are thousands of species . For beginners, it is rather advisable to move towards species that are easy to maintain in an aquarium , inexpensive and compatible with each other . To explore the choice of possibilities, the flora and fauna encyclopedia available on the site is an excellent way to find its population and discover new species.

It’s very simple, for that, you just need, once on the encyclopedia’s search engine, on a desktop computer, to select the criteria of your choice in the right column (volume, parameters, …). On mobile, you must use the icon “”to display the filters.

This will allow you, for example, to visualize the possible fish according to a volume, according to a pH, a maintenance difficulty, … Once you have spotted a fish , you can use the “Is this fish compatible with my aquarium?” feature directly on the file.

Note that you will probably have to look first and foremost on the type of aquarium you want (sea water, fresh water, cold water, biotope, community, specific, …). It will obviously be decisive in your decision making.

Warm water fish are very interesting in terms of their variety of colors and the diversity of species. The varieties of cold water species are less important but still offer a wide choice.

Volume and dimensions of the aquarium

The size of the aquarium is one of the first discriminating criteria for choosing the right population. In fact, the dimensions (both width, length, and height) as well as the net volume constitute the swimming space of your future fish.

In order to fully respect this criterion, nothing could be simpler! Just look at the sheet of the fish you have selected from the encyclopedia of flora and fauna in the aquarium. The recommended minimum volumes are perfectly indicated there. Note that it will also be necessary to take care to limit the number of fish so as not to end up in overpopulation.

In short, size matters! But it’s not just the size that matters …;)

Way of life

Each fish has different needs and lifestyles. For example, some fish are solitary, others can be gregarious, some live in pairs, sometimes only during the breeding season, others in harems, … It is important to understand your fish well in order to make the right choice. Once again, the sheet of the fish concerned that you will find in the encyclopedia will allow you to answer these different questions.

  • Solitary : the fish lives alone. This will necessarily limit your choice (example: betta splendes, …)
  • Gregarious : the fish live in shoals, in groups, often from 6 (example: tetras, cardinalis, …)
  • In Couple : the fish lives in couple, a dominant male, a dominated female. Often together, they will not chase each other (example: gouramis, …)
  • In Harem : one male and at least two females (example: apistogramma cacatuoides, …)
  • Incompatibility of species

It is essential to check the compatibility of the different species that you introduce into your aquarium. I grant you, it is not that simple, especially since for certain species, opinions differ. To help you, you can refer to the compatibility tables which can be the object of a first base and thereafter, in case of doubt, do not hesitate to ask the question to the community in order to feed you feedback from everyone. It would be a shame to try it alone for the good of your fish.

Also be sure to exclude any predation from the aquarium during breeding where some usually peaceful species can become very aggressive. Here, it is probably not necessary to forbid a species for this reason insofar as you can control reproduction, isolate, … and / or avoid it with the help of dense flora. Indeed, a planted aquarium can make it possible to optimize the spaces of each one, to delimit the territories and to offer to the fry hiding places to avoid ending up in meal.

In general, it is rather advisable not to mix large species with small species. Even if there is no risk of predation and both species are known to be peaceful, the smaller fish will tend to stress, if only by the swimming movements of the larger ones and the water. Indeed, this can generate diseases, the smallest fish will tend to hide and only come out to feed. It will then become difficult to observe them.

In addition, it should be noted that many species are the subject of selections and have reached atypical morphologies: long fins, imposing veils, growths on the body, large eyes, … These characteristics can cause aggression or curiosity from other fish.


Food can indeed be a discriminating criterion in the choice of your population. Indeed, although most common fish are rather omnivorous or vegetarian, some feed exclusively on live food and this can quickly become a constraint, especially during periods of leave or prolonged absence. A mixture of species with different diets will necessarily result in different food intake.

You will also need to be careful to limit food competition so that you can easily feed the entire aquarium. For example, if you choose rather lively fish on the surface that feed in the same way as ground fish, you will experience difficulties in feeding your ground fish which will in fact require a dedicated and specialized feed.

Water quality and water parameters

Obviously, the last criterion of choice and not the least, lies in the parameters of the water. Water acidity? Temperature? … Indeed, the quality of your water and your parameters will also restrict you in the choice of possibilities. Once again, the sheet of the fish concerned that you will find in the encyclopedia will allow you to answer these different questions.

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