Looking for a new fish to add to your aquarium? Check out our list of the best gray color tetras! These fish are beautiful and easy to care for, making them perfect for beginners. We’ll discuss the different species of gray color tetras and what you need to know before adding them to your tank. So, if you’re looking for some new aquatic friends, be sure to read on!
The gray color tetras include some of the most popular fish in the aquarium hobby. They are beautiful, easy to care for, and perfect for beginners. There are a number of different species of gray color tetras, each with its own unique personality and requirements.
List of 12+ Gray Color Tetras Crafted For Your Aquarium
Gray color tetras can neutralize the royalty of your aquarium. Below is a list of some of the best gray-color tetras for your home aquarium:
Neon Tetra –
The Neon Tetra is a beautiful fish that comes in many different colors, such as blue, red, green, and orange. These fish are easy to care for and do well with other tetras or small schooling fish like danios or rasboras.
They will school together if there are at least three of the same species in each tank. These fish are also very peaceful so they make good community fishes for beginners!
Serpae Tetra –
The Serpae Tetra is beautiful and easy to care for freshwater fish with bright red fins contrasting against its black body. They do well in groups of at least three but prefer living together as part of a larger school if possible.
This means that they will need an aquarium size large enough to accommodate their social needs (at least 20 gallons per group).
Cardinal Tetra –
The Cardinal tetras are small, colorful, and peaceful, making them perfect for the beginner aquarist. These little guys come from South America where they live in slow-moving streams and ponds with plenty of vegetation on which to hide their eggs during spawning season.
The Cardinal Tetra is a beautiful, colorful fish with bright red fins contrasting against its black body. They do well in groups of at least three but prefer living together as part of a larger school if possible; this means that they will need an aquarium size large enough to accommodate their social needs (at least 20 gallons per group).
Black Neon Tetra –
The Black Neon Tetra is a beautiful fish that comes in many different colors such as blue, red, green, and orange. These fish are easy to care for and do well with other tetras or small schooling fish like danios or rasboras.
They will school together if there are at least three of the same species in each tank. These fish are also very peaceful so they make good community fishes for beginners!
Glowlight Tetra –
The Glowlight Tetra is a popular aquarium fish that gets its name from the faint glow it emits at night. This light helps the Glowlight Tetra find food and navigate through their environment.
These fish come from Africa where they live in calm, slow-moving waters. They are schooling fish and should be kept in groups of at least six.
Black Phantom Tetra –
The Black Phantom tetras are small and peaceful freshwater fish that live mainly in rivers throughout South America where the waters are slow-moving and there’s plenty of vegetation on which to hide their eggs during spawning season.
These little guys come from Brazil where they’re found primarily along stretches near Sao Paulo state or Rio de Janeiro City Hall building area. They do well in groups of at least three but prefer living together as part of a larger school if possible.
This means that they will need an aquarium size large enough to accommodate their social needs (at least 20 gallons per group).
Diamond Tetra –
The Diamond tetras are small and peaceful freshwater fish that live mainly in rivers throughout South America where the waters are slow-moving and there’s plenty of vegetation on which to hide their eggs during spawning season.
These little guys come from Brazil where they’re found primarily along stretches near Sao Paulo state or Rio de Janeiro City Hall building area. Diamond tetras are schooling fish and do best when kept in groups of at least five.
Congo Tetra

The Congo Tetra is beautiful and easy to care for freshwater fish with bright red fins contrasting against its black body. They do well in groups of at least three but prefer living together as part of a larger school if possible.
This means that they will need an aquarium size large enough to accommodate their social needs (at least 20 gallons per group).
Emperor Tetra –
The Emperor tetras are one of the most popular tetras kept in home aquaria, and it’s not hard to see why! These strikingly colored fish come from South America where they live in slow-moving streams and ponds. They are schooling fish and should be kept in groups of six or more.
Emperor tetras are a little more aggressive than some of the other tetras on this list, so they may not be suitable for all tanks.
These tetras are also quite similar to neon tetras, however, they made the list because of their more noticeable red hue.
These cardinal tetras are a blend of red and blue in hue. The blue color strip goes down the top side of the cardinal tetra’s body, while the red color strip runs along the bottom side from head to tail.
Because these two hues are so vibrant, the school of fish swimming around the tank is much more appealing.
That is why they are one of the most popular tetra fish to maintain in an aquarium. However, color fading in neon and cardinal tetras is a possibility owing to a variety of circumstances.
Rainbow Tetra –
The Rainbow Tetra is one of the most popular tetras kept in home aquaria, and it’s not hard to see why! These strikingly colored fish come from South America where they live in slow-moving streams and ponds. They are schooling fish and should be kept in groups of six or more.
Rainbow tetras do well with other small community fish like danios or rasboras.
Red Line Tetra
Due to the similarities in their names, Scarlet Red Line Tetra and Red Line Tetra are sometimes confused.
Scarlet tetra is another name for red line tetra, although these two tetras are fundamentally distinct.
The red line that extends from below the head to the end of the silvery body gave the red line tetra its name.
The bodies of these tetras have a mix of hues including yellow, grey, black, silver, and red.
A faint but noticeable black mark can be found directly behind the head of the Redline.
You’ll also see a yellow line running immediately beneath the crimson color in their torso.
Picture credit: https://www.youtube.com/watch?v=QSMSNoFthZ0
Scarlet Red Line Tetra

Watermelon tetra, red laser tetra, and Coreulean Pink Tetra are common names for these tetras, despite the fact that they have no well-known names.
Each of their names contains a bit of red hue, as you can see. And the bright red coloration on the bottom of their bodies, together with a neon pink line, makes them a lot more appealing.
Scarlet Red Line tetras have a beautiful appearance during the spawning season. The male scarlet red line develops a deep ruby red hue, which causes them to be mistaken for another species.
Apart from the color and a few other traits, they share an obvious resemblance to glowlight tetra. This could be owing to the fact that both of these tetras belong to the same genus.
FAQS:
What’s the best way to care for a black neon tetra?
These little guys come from South America where they live in slow-moving streams and ponds with plenty of vegetation on which to hide their eggs during spawning season.
They do well in groups of at least three but prefer living together as part of a larger school if possible; this means that they will need an aquarium size large enough to accommodate their social needs (at least 20 gallons per group).
To keep your Black Neon Tetras happy, feed them high-quality flake food daily or frozen foods such as bloodworms once every two days.
What’s the best way to care for a diamond tetra?
These little guys come from Brazil where they’re found primarily along stretches near Sao Paulo state or Rio de Janeiro City Hall building area.
Diamond tetras are schooling fish and do best when kept in groups of at least five.
To keep your Diamond Tetras happy, feed them high-quality flake food daily or frozen foods such as bloodworms once every two days.
Can I put a rainbow tetra with a goldfish?
Rainbow Tetras do well with other small community fish like danios or rasboras. However, they should not be housed with larger fish like goldfish as they may become prey.
Conclusion:
So, if you’re looking for a beautiful and easy-to-care-for freshwater fish that comes in many different colors, the tetra family is a great place to start. These fish are perfect for the beginner aquarist and will do well in an aquarium with other peaceful community fish. Happy tank shopping!
If you’re looking for a beautiful and easy-to-care-for freshwater fish that comes in many different colors, the tetra family is a great place to start. These fish are perfect for the beginner aquarist and will do well in an aquarium with other peaceful community fish. Some of our favorite tetras include: