12 Best Fish For 10 Gallon Tank – A Stocking Guide For Newbies

What will be your initial thoughts on the aquarium size if you plan to start a new fishkeeping hobby? Very naturally, most beginners won’t prefer a vast aquarium, to begin with. 

They prefer to go for a smaller aquarium and find the 10-gallon tank is a viable choice. A 10-gallon tank is easily portable, user-friendly, and inexpensive. 

Sometimes people buy a 10-gallon tank but want to stock many fishes or large fish unsuitable for the tank size. 

Therefore, before stocking, all you need is to do some homework and find the Best Fish For 10-Gallon Tank ‘. A decent fish combination & quantity can keep you free of tension about your fish’s well-being.

Factors in Selection of The Best Fish for A 10-Gallon Tank

Picking the best fish for a 10-gallon tank is not difficult, though you must consider a few crucial factors.

Factors to consider selecting best fish for a 10-gallon tank
Factors to consider in selecting the best fish for a 10-gallon tank

Care Requirement:

As a beginner, you should select easy-care fish for a 10-gallon tank. Hardy fish can resist a broad range of water conditions and doesn’t need special type care is the best choice.

How Many Fish:

The common question is, in a 10-gallon tank, how many fish can you put? There are some rules to follow as a rough estimate. First, the “one inch per gallon” rule means that the total length of fish in a 10-gallon tank should not exceed 10 inches. 

Another one is the “surface area rule” that suggests stocking one-inch fish for every 12 square inches. But those are all generic. You need to be specific because every setup is different. In addition, those rules don’t consider many other essential factors. 

Stocking quantity varies on fish types, shapes, behaviors, how much waste they produce, their adult size, and many other considerations. In addition, your filtration matters a lot. Also, if you have a planted 10-gallon aquarium, you can stock more fish than a simple freshwater aquarium because plants work as an added filter. 

Ensure you always consider the fish’s adult size and true water volume (excluding substrates, decors, rocks, etc. ).

Please read my article on how many fish per gallon – the ultimate guide if you want to know in detail. 

Fish Temperament:

Fish temperament is another essential factor when choosing. Fin nippers can’t stay with fishes that have large fins. Aggressive fish that bothers other peaceful fish should not be put together. Also, some fish doesn’t like their same-sex counterpart.

So a careful selection of the fishes based on temperament is necessary to make a good community in your aquarium.

Best Fish for 10 Gallon Tank

In the list of best fish for a 10-gallon tank, we added some schooling fish; they swim in the same direction and stay well in a group of six or more. Also, we have chosen some centerpiece fish like Bettas, and Gourami.

Though they are a bit aggressive, you can put them together with schooling fish on this list. We also added bottom-feeder fish to lower the cleaning frequency in your tank.

Here, we outlined the best twelve fishes for a 10-gallon tank to guide you on this lovely journey of fishkeeping.

1) Guppy

Guppy Fish For 10 Gallon Aquarium

Guppies are one of the widespread freshwater aquarium fishes. They are tons of bright colors, ornamental fins, are very active, and a beginner-friendly fish.

They can pass through many mistakes that beginners make since they are super hardy and super easy to keep. The ideal temperature for guppies is 78 to 80 degrees Fahrenheit.

Guppies are very much compatible, and they will not bother any other fish. So select suitable mates that won’t strain guppies. As mates, find community types of peaceful fishes and stay away from fin nippers.

You can make a species-only tank with nothing but only 5 to 10 guppies. And, still, you can make your aquarium attractive since they are of so many varieties and colors. Yet, it is good to have some bottom dwellers who clean the mess. Guppies occupy the top third of the water usually.

The three females to 1 male ratio is a good start if you make a breeding tank. Because males can take care of a lot more females, and Guppies are fast breeders! They are livebearers and will give birth to fully-formed baby guppies.

Guppies can grow a maximum of 2.4 inches long. They are omnivorous, but you need to feed proper size food for this tiny little creature. 

The most common disease for guppies is ich (white spot), easily preventable with a heater. Because it’s a tropical fish and they like the water a bit warmer side.

2) Betta

Betta Fish For 10 Gallon Aquarium

You would like to have a centerpiece fish for a 10-gallon tank; here is the one, the Bettas. Being colorful, dazzling scales, and decorous fins make the Betta one of the most eye-catching to aquarists.

Bettas are tough fish, and they can survive in water with lower oxygen levels, thanks to the “labyrinth organ,” which lets them take gulps of air from the surface. As a result, they love to hover around near the top of the water.

Betta fish is well known for fierce fighting because of its territorial nature. This aggressive fish for a 10-gallon tank is picked because you can keep it carefully with other fish. First, don’t put Bettas with Bettas and avoid aggressive fin nipper fish. Bettas can feel stressed sharing a tank with rivals.

The bigger the tank is better for Bettas because, in small tanks, they can attack other species. In your 10-gallon aquarium, you can put only one Betta fish with other nonviolent mates. Guppies, neon tetras, and scavenger fish cory catfish are the best mate for Bettas.

Bettas prefer water temperature maintained between 78 to 82 degrees. Therefore, Bettas should never be kept in a tank with Goldfish, who require colder water to be comfortable.

Bettas are carnivorous animals who, in nature, eat primarily insects and insect larvae. In captivity, feed your Betta fish pellets or frozen foods.

The average length of Bettas is 2.25 inches, and it can grow as long as 3 inches depending on the care it gets. Betta is one of the giant fishes for a 10-gallon tank that you can keep with other schooling fish (though it is a little tricky.)

Know more about Betta: Betta Fish Care Guide (How To Care For A Betta Fish For Beginners)

3) Cory Catfish (Corydoras)

Cory catfish are the best beginner catfish, effortless to keep, and they are really entertaining. They are bottom-dwellers & will care for you by working as a scavenger in the tank. They love hiding places to rest, so provide some live plants, reefs, and rocks to make them happy.

Cory Catfish can grow 1 to 2.5 inches in length. They are schooling fish, and they seem much happier in a group of two or more; moreover, they can get along well with other species.

Since Corry Catfish is the bottom dweller, it relies on foods that fall to the lowermost region. Floating food may never reach them; therefore, you can add some sinking food for proper nutrition.

They are well suited to tropical freshwater; however, they can tolerate a wide range of temperatures, including cooler than tropical. The optimum temperature is 72 to 80 degrees Fahrenheit.

Similar to other catfish, they can breathe oxygen from the atmosphere. So, in the tank, intermittently, Corry Catfish will move to the surface to take a “breath” of air, which is entirely normal behavior.

4) Platy

Platy For 10 Gallon Aquarium

Another common, amazing aquarium fish is platy. They are straightforward to keep and hardy fish, originally from Central America.

There are many different color variations of platyfish like a blue tuxedo, top cell rainbow, golden sunset, red, black, blue, yellow, etc., and the list is endless.

Platies are so adaptable, and they can tolerate 70-82 degrees Fahrenheit when it comes to temperature. So that’s a vast range in that tropical Zone.

The great part is, you can keep them solo or in a group. They are peaceful and can co-habitat with other fish. Small nonviolent fish is the perfect tank companions, such as Mollies, Guppies, or Tetras. Platy will have a difficult time with aggressive fish like Bettas, Chiclid, etc.

You can also breed them, and keep the female-to-male ratio at 2:1. They’re livebearers, which means females deliver live babies who start to breathe in no time.

The platy grows to a maximum overall length of 2.8 inches. Thus, three or four platy can live comfortably in a 10-gallon tank.

They are considered omnivorous eaters but prefer herbivores. The best diet for them is the ideal mixture of protein and vegetables. Flakes and pallet foods available in the pet store would be sufficient enough for their nutrition.

The most common disease of platy is ich and fin rot. Ich is preventable by using an aquarium heater and keeping warm temperatures. For fin rot, antibiotics should be applied. The best way to prevent those is to maintain good water quality and a healthy diet. 

5) Honey Gourami

Honey Gourami For 10 Gallon Aquarium

This one is another centerpiece fish for a 10-gallon tank, Honey Gourami. It can reach a length of 2.8 inches maximum, and we recommend only one in the tank.

Males and females are distinguishable through colors. Male has a red-orange variety known as sunset or robin red and a lighter variety called gold, while females are primarily silvery-blue.

Honey gouramis are generally peaceful and shy fish, but males can be hostile to other male counterparts. However, they’re well-matched with most docile fish, such as Platy, Molly, Catfish, Tetra, etc. Gouramis are labyrinth fish and are usually found swimming in the middle or top regions of the aquarium.

They are labyrinth fish, allowing the fish to survive in oxygen-depleted water. However, it doesn’t eliminate the water changing requirements since they are prone to Velvet’s disease if water quality fails. However, it is pretty rare to catch a disease in a well-maintained tank.

They are of tropical origin, mainly in India and Bangladesh, and they like the water temperature maintained between 72 to 82 degrees Fahrenheit.

The Honey gouramis are omnivorous, these fish will generally eat all kinds of pallet and flake foods, but they can also eat live fries or insects.

6) Sailfin Molly

Molly is a unique fish species in the world. They are typically known for giving birth to their offspring rather than laying eggs like other species.

These stunning livebearers are small and peaceful species. A beginner can easily keep the fish species since they are easy to care for.

The most beautiful thing is that these creatures can survive in freshwater and saltwater. The bodies of these species tend to adjust faster, depending on the prevailing conditions.

Besides that, the fish species’ ideal conditions are warm water between 75-80 degrees Fahrenheit. The water pH should range from 7.0 to 7.8

Another vital feature is that these fishes are mid-level swimmers. Hence, it is advisable to keep them in densely planted aquariums with proper illumination.

One of my favorite features is the growth length and vibrant colors. These species grow to about 3 to 4 inches, and they make your aquarium look spectacular.

Furthermore, mollies are omnivorous. They have a diet that comprises both plant and animal foods.

One of the nicest features is that these species are non-aggressive, making them compatible with other aquarium fish.

To sum up, the species of fish is highly prone to fin rot and swim bladder diseases. Most of these diseases are due to bacterial infections, and the user can treat them with antibiotics.

7) Celestial Pearl Danio

Another easy-care schooling fish is Celestial Pearl Danios; they are shy, peaceful, and don’t like a strong current. Fortunately, they don’t grow much, only about 1 inch long.

They are sexually dimorphic in color, and males are more beautiful than females. Males have a bright blue background color compared to the dull grayish-brown color in females. Lustrous golden pearls sprinkled all over the body and fins are made of an orange and black combination.

Since they are shy, they would like a densely planted tank for hiding. Keep a school of six or more, and you will observe more of a shoaling behavior. It means they swim independently, but they always stay connected, forming a social group.

Celestial Pearl Danios usually occupy the middle and bottom strata of the water. Sinking food is a good option for them to feed, but they won’t mind a floating pallet; make sure the food is tiny enough.

They are pretty flexible with the water conditions, and the ideal temperature should be 73 to 79 degrees Fahrenheit. If you plan to make a species-only tank, the right stocking should be 10 Celestial Pearl Danios in your 10-gallon tank.

Celestial Pearl Danios stays well with other non-hostile community fish like neon tetra, corydoras, etc. Overall, they are quite peaceful, though some fin-nipping occurs. Their dynamic nature and behavioral pattern can bring perfect contrast to your aquarium.

8) Neon Tetra

Neon Tetra For 10 Gallon Aquarium

Neon Tetra is the most popular aquarium fish among hobbyists, and this list will be incomplete without mentioning them. They are schooling fish and are best kept in a group of six or more.

They have bright blue and red stripes on the body, with a light-blue back and silver-white abdomen. But, the most fantastic part of Neon Tetra is, it changes color! While it rests at night, blue or red colors become gray or black and reactivate when it becomes active in the morning.

As mentioned before, they are resilient, and they can live in a water temperature range of 70-81 degrees Fahrenheit and a pH of 6-7.5. They reach 1.4 inches in their lifespan. Due to their small size, keeping them with large or violent fish should be avoided. They mix well with Guppies, Danios, and other peaceful community fish.

Neon Tetras are very energetic; in contrast to that, they are also very calm. They love to stay in the middle part of the water and enjoy swimming plants. So, if possible, try adding some live plants to play around with.

Neon tetras will accept micro pellets and most flake foods. However, since they are mid-level feeders, a tropical sinking pellet is ideal, and to add variety to the diet, you may offer some frozen food as well.

They are occasionally affected by the so-called “Neon Tetra Diseases” and are mostly not curable. It happens because of some parasites. Removal of the diseased fish is somewhat the best treatment to preserve the others. But, this disease is rare in a healthy and balanced aquarium.

9) Zebra Danio

Zebra Danio - In 10-gallon Tank

Zebra Danio is one of the first bunch of fish I kept during my early days of fishkeeping. They are one of the best beginner’s fish and easy to maintain. The tiny little creature is hardy and can tolerate adverse conditions.

They are pretty-looking fish, available in different colors; red, yellow, blue, purple, etc. Five zebra pattern stripes are visible along their body, and the stripe’s color differs according to the fish’s body color.

They are community fish, peaceful in nature, and love schooling. I’ll suggest keeping them in a group of six or more because, in a large group, their behaviors change drastically in a positive way. They become more active and happy.

Zebra Danios are compatible with most peaceful community fish like Tetras, Mollies, Platies, and bottom-feeder fish. However, they show a bit of a fin-nipping tendency towards long-finned lazy fish.

They don’t grow much; in aquarium conditions, they hardly exceed two inches. However, they can survive in different situations and are adaptable to changes. The ideal pH is 6.5 to 7.5.

They prefer a warmer temperature; you can keep them in a temperature range of 65-80°F. At relatively lower temperatures, they are susceptible to fungus and bacterial diseases. Learn more about zebra danios here.

10) White Cloud Mountain Minnow

White Cloud Mountain Minnow - In 10-gallon Tank

White Cloud Mountain Minnows are wonderful freshwater aquarium fish for beginners because of their peaceful temperament and simple maintenance. These little guys are the friendliest freshwater aquarium fish you can get! They have bright colors that make them easy to spot in your tank.

The small size of White Cloud Mountain Minnow makes it easier to keep them in your 10-gallon tank, including a community aquarium with other fish! However, their breeding habits mean fast population growth, and they don’t feed on young ones as some other species do.

White Cloud Mountain Minnows are resilient fish that can survive in both warm and cold water. However, they tend to swim mid-ground, so you should keep them there with other schoolmates!

For White Cloud Mountain Minnows, the temperature should be kept between 64-72°F with tolerable fluctuations above and below. But don’t let it exceed 80 degrees Fahrenheit (or 26 Celsius)! An ideal pH range is 6 – 8 for them.

These little guys may experience health problems like any other freshwater aquarium inhabitant, but it’s nothing too serious considering their tough nature as survivors of changeable conditions.

11) Harlequin Rasbora

Harlequin Rasbora - In 10-gallon Tank

Harlequin Rasboras are an excellent choice for those who want to keep an aquarium with tiny, colorful, and peaceful fish. They rarely get bigger than 2 inches long and easily fit into your 10-gallon tank without causing any stress or problems!

Harlequin Rasboras can be a great addition to any aquarium! These colorful little fish prefer warmer water with neutral or alkaline pH levels. They swim around happily, making their tank life easy to enjoy and entertain!

The Harlequin rasbora is a great fish for beginners because it does not require any special equipment. Just make sure you have the filter outlet set up with at least one strong enough current, and most commonly sold aquarium lights should work fine too! 

You will also need to add a heater so your water isn’t too cold or hot and is kept between 72-81°F. Be careful about maintaining a pH below 6 since this can lead to toxicity problems – 6-7.8 pH is okay!

The Harlequin Rasbora is a popular fish for aquariums. They prefer feeding on bloodworms, daphnia, insect larvae, and live food such that it can be twice daily.

They’re highly susceptible to infections such as ich or dropsy, which can be treated if caught early enough.

12) Pencilfish

pencilfish - In 10-gallon Tank

Keeping a school of pencil fish can be an exciting and enjoyable experience. The name “pencil” originates from their slimmer shape, which is similar in appearance to the writing utensils known as pencils! 

These schools thrive when they’re around six total individuals – any less than that, and you might have trouble maintaining social order among your pet’s numerous personalities!

These beautiful fish have a wide variety of colors to choose from but typically show gold and iridescent markings on their body. They also tend not only the horizontal black bands but also to splashes or stripes along with reds, oranges, and browns – just take your pick!

Though Pencilfish can live in a variety of different environments, they prefer soft water and slightly acidic pH levels (5.5-7.3). They also like temperatures between 72-80 degrees Fahrenheit for optimal health.

Keep Pencilfish in a tank with other peaceful, small creatures. They are best suited to live together and should not be kept alongside large, aggressive predators as they will likely fight over food which can cause injury or death if victorious. Also, avoid keeping more males than females because of rivalries among them that may lead one fish to chase after another.

What Else Can You Add In A 10-Gallon Tank?

Besides the above-described fish, you can add some other living beings to your 10-gallon tank, and they will become fantastic aquatic pets for you.

Amano Shrimp

Amano Shrimp For 10 Gallon Aquarium

Amano shrimp is one of the most popular freshwater shrimp in the aquarium hobby. As a beginner, you can keep them in your 10-gallon tank as they are excellent algae-eaters.

Amano shrimp are very hardy and the perfect choice to be the first invertebrates of beginners. They are small species and grow up to 2 inches. In appearance – they have a greyish transparent body.

Females are larger than males, having long dashes on their bodies, while males have evenly spaced-out dots. So in a 10-gallon tank, you can keep five of them comfortably.

Amano shrimps are hardy and tolerate a wide range of water conditions. A pH level of 6.0 to 7.0 works well for them. However, you should provide lots of hiding places in the tank to provide them comfort.

Nerite Snail

Nerite Snail For 10 Gallon Aquarium

You can keep Nerite Snails in your 10-gallon tank. They are one of the most popular freshwater snails these days and are known as excellent tank cleaners. They are tiny species that hardly reach 3/4 inches in size. 

Several species of nerite snails are popular as pet snails, and all are algae eaters. Zebra Nerite Snail, Tiger Nerite Snail, Olive Nerite Snail, Black Racer Nerite Snail, Horned Nerite Snail, etc., are well-known names.

Nerite snail care is effortless and straightforward as they are hardy species. They are okay with a wide range of water conditions. They prefer slightly alkaline water of pH around 7.5. 

Copper-based medication and supplementation can be fatal for snails – you should keep it in mind when keeping snails in your aquarium. They thrive in any aquarium, so be careful of overstocking.

African Dwarf Frog

African dwarf frog – yes, keeping them in your 10-gallon aquarium is a unique idea, and you can give it a try. These frogs are small creatures and grow up to three inches in size. 

African dwarf frogs are aquatic frog species, and they have lungs so that they can breathe air. You can keep three frogs in your 10-gallon tank with other community fish. But be careful – your frog can eat tiny fish when they are hungry; feed them well, and they will remain peaceful.

African frogs don’t demand any special care; they only keep the tank environment clean and healthy. A HOB filter or under gravel filter is perfect for their tank. 

Feeding your African dwarf frog is no hassle, as they eat pellet foods you would provide to your small fish. But they are slow-eaters, so make sure they are not out-competed by their tankmates.

For 10-gallon tank combination ideas, you can see this video:

Final Words

The best fish for a 10-gallon tank should be hardy, easy to care for, and adaptable enough to suit different water conditions. Fish selection is the most crucial part of setting up a 10-gallon tank. You can’t randomly put them, but a careful mixture is mandatory. 

We don’t tell you to keep all of the fish listed in this article. The purpose is to let you know about them, and after that, you may choose the best fish combos for your 10-gallon tank.

It is very typical to make some blunders while keeping the fish as a beginner. Sometimes you may find dying fish, which can cause heartache, but don’t be discouraged; try to understand your mistakes and learn from them.

In this way, you may develop your skill as an aquarist; after that, you may need not search for the Best Fish For 10 Gallon Tank; you can keep any fish you like. Moreover, you can go for a larger size, like a 20-gallon tank with confidence.

Sujit Modak

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