10 Best Tightest Schooling Fish You’ll Enjoy Watching

Schooling fish have the habit of swimming in a large group, in a single direction, and they usually use their tail to swim forward.

They are also known to follow a leader and they swim in the front of the group.

They are one of the most popular types of fish in the world, and they are loved by people.

So, this is why we decided to share a list of the best 10 tightest schooling fish that will help you to enjoy watching the swimming activities.

10 Best and Fast Tightest Schooling Fish

Schooling fish are those fish which have the habit of chasing each other.

They are also called social fish because they usually live together in schools.

If you are a fish lover, then you are going to fall in love with this article.

I am going to share with you the best tightest schooling fish you’ll enjoy watching. Here is the list.

1. Rummy Nose Tetra

Rummy nose tetra is a schooling fish species and is a popular aquarium fish that is often used as a beginner fish in aquariums.

This fish is often found in the tropical waters of the Indian Ocean and Australia.

This fish has a tendency to swim slowly, but when it encounters something interesting, it will dart forward.

This species of fish is very active and energetic, and when it comes to swimming, its gills will rise.

Rummy nose tetra is a tight schooling fish and a highly social fish.

This fish will fight and interact with other fishes and will even attack the other fish if it feels that it is being threatened.

These fish will breed in large numbers and will release the eggs in the water.

Rummy nose tetra is a common aquarium fish that is often bought by beginners because of its small size and friendly nature.

Related article: 10 fish that follow your finger [and how to get them to follow]

2. Harlequin Rasbora

If you are planning to buy a new aquarium then definitely you should choose the harlequin rasbora.

These fish are very easy to take care of and can be easily fed with a piece of shrimp or prawn.

They do not require a lot of maintenance and are very easy to breed.

The most amazing thing about this fish is its colour.

The colour ranges from deep red to white, yellow, green, blue, and orange.

They are extremely beautiful and look stunning when they are in school.

If you have one of these fish in your tank, then you will surely love their appearance.

They are extremely friendly and will swim tightly together in school.

This makes it easier to keep them under a single tank.

3. Lampeye killifish

Lampeye killifish are the best tightest schooling fish in the aquarium. These fishes are famous for their great swimming ability and great temperament.

If you want to buy a perfect tight schooler, then you should choose lamp eye killifish. They are one of the most popular aquarium fish species.

They are very fast and they are very agile, so they are used in competitive and aggressive aquarium tanks.

In addition, they are very clean and hardworking.

They don’t have any diseases and they don’t harm their surroundings.

They are usually kept in tanks with plenty of hiding places.

Their diet includes fresh vegetables, algae and live food.

They have a lifespan of 15 to 18 years. They are also very good for breeding.

I hope that you have understood the reason why lamp eye killifish are the best schooling fish in the aquarium.

4. Buenos Aires Tetra

One of the major reasons that make Buenos Aires tetras so popular is the fact that they are very good at schooling. They are excellent at socializing with each other.

When you keep a group of Buenos Aires tetras in a tank, then you will get a great experience of schooling.

Buenos Aires tetra is the ideal choice for the beginner as it is the cheapest fish available.

Buenos Aires tetra is small in size and they grow up to the size of 1 inch. This is the smallest fish species in the tank.

Buenos Aires tetra is very easy to breed and they can be raised in a 10-gallon tank.

Buenos Aires tetra is known for their colourful and beautiful appearance.

They are easy to care for and they require moderate feeding.

If you are looking for a fish that is easy to care for and can be easily maintained, then Buenos Aires tetra is the best choice for you.

5. Bloodfin Tetra

They are also known as bloodfin tetras because of their colour and it is black with yellow markings.

They are usually found in large tight schools of up to 100, but sometimes they can be found in smaller schools.

These are not only beautiful to look at but also they are very friendly and peaceful fish.

They don’t fight with each other and they also don’t eat each other.

If you want to get a healthy environment in your aquarium then this is the perfect schooling fish that you need to add to your tank.

The best thing about them is that they are very easy to keep and they also make an amazing addition to your tank.

If you want to buy these beautiful fish then it is recommended that you go online.

There are many websites where you can buy bloodfin tetras online.

6. Ember Tetra

If you are looking for a perfect tight schooling fish for your aquarium, then you must have heard about the Ember tetra.

It is a tropical fish that has very high intelligence and will never let you down.

They are one of the most famous schooling fish and they are known for their swimming techniques.

Ember tetra is a beautiful fish which is why it is the best choice for any kind of aquarium.

These fish are not difficult to care for. If you keep them in a small tank then you don’t need to pay much attention to the tank.

You just need to clean the water once a month and you are done.

These fish can swim very fast and this is what makes them a perfect choice for schools. They are one of the fastest schooling fishes in the world.

7. Glass Catfish

Glass catfish is the best tightest schooling fish in the aquarium.

Glass catfish have very interesting and unique swimming movements. They are very active, fast-moving, beautiful-looking, intelligent and hard-working fish.

The speed and movement of their tail change constantly as they swim.

They are the best tightest schooling fish because they can follow the path of another fish and keep themselves in front of the path of the other fish.

You can keep the school of glass catfish in an aquarium with a minimum of 10 to 12 gallons of water.

The temperature of the water should be kept around 72 degrees. You need to keep the water clean and clear.

The school of glass catfish will remain active, intelligent and beautiful if you feed them a good diet.

8. Tiger Barb

Tiger barbs are known to be one of the most intelligent and powerful schooling fish.

These barbs are famous for being very active and alert in the aquarium.

Their size varies from 12 cm to 20 cm. Tiger barbs are not recommended for beginners and they need to be handled with great care.

If you are planning to keep tiger barbs in a tank then you will have to ensure that it is large enough and the fish should be able to swim freely.

Tiger barbs are known to school very quickly and if you don’t have the required space then it will be impossible for you to keep the fish.

9. Congo Tetra

There are so many reasons why Congo tetras are considered the best tight schooling fish.

The main reason is their compactness, they are a little bit smaller than other schooling fishes.

Their colour is also very attractive and it will create an aesthetic look in your tank.

If you are new to the aquarium hobby, then this is the perfect species for you because they are quite easy to keep and maintain.

This is the perfect choice for the beginner as well.

10. Roseline Shark

Roseline sharks are one of the best school fish as they are very social and they tend to school together.

Roseline sharks are perfect for beginners as they don’t require any special equipment to survive in an aquarium.

You don’t need any special filter for their survival and they are not affected by other fishes.

Roseline sharks are easy to care and they don’t require much attention. They don’t need any extra food and they don’t need water changes.

Roseline sharks are the most suitable choice for beginners as they are very hardy and they can survive in a wide range of temperatures.

If you are looking for the tightest schooling fish that will give you maximum entertainment then choose Roseline sharks.


If you want to see the school of fish, then you can choose any of the fish above.

But, if you want to see the most unique and tightest swimming fish then the list is made for you.

Tightest Schooling FishNumber of Fish In GroupSwimming Speed
Neon Tetra6-80.5 – 1.5 in/s
Cardinal Tetra6-80.5 – 1.5 in/s
Rummy-nose Tetra6-80.5 – 1.5 in/s
Harlequin Rasbora8-101 – 2 in/s
Glowlight Tetra6-80.5 – 1.5 in/s
Green Fire Tetra6-81 – 2 in/s
Cherry Barb8-101 – 2 in/s
Black Phantom Tetra6-80.5 – 1.5 in/s

These 10 fishes are very active and intelligent.

I hope you will enjoy the school of fish and enjoy the training process.

Let us know which one is your favourite from the given list. Comment below!

Recommended article:

5 Best Schooling Fish for Beginners

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