Tetras are schooling fish from the family Characidae. They are calm, colorful and mostly peaceful, making them ideal for both beginner and advanced hobbyists. Popular beginner tetras include red eye, black skirt, serpae and bloodfins, but neons, black neons, glowlights, and lemon tetras can be good choices as well. Others, like cardinals, emperors, and penguin tetras are more challenging to keep and do best in well-established aquariums.

Most tetras are peaceful and get along well with similarly sized community fish, but there are a few exceptions. Serpae tetras, for example, can sometimes be nippy, especially when kept in insufficient numbers. Others, like Buenos Aires tetras, get quite large and are very active, which may intimidate smaller, more timid fish. Good tank mates for tetras include other tetra species, rasboras, small danios, peaceful barbs, appropriately sized rainbowfish, and livebearers.

Rummy Nose Tetra



Fresh water Neon Fish found in Amazon river



Neon Tetra/Cardinal Tetra/Green Neon Tetra etc.

Keep me in large schools and I'll be the star of the tank.

Neon Tetras red stripe extends halfway while in a Cardinal Tetra, the red line follows the entire body.  The Cardinal are generally larger than the Neon and prefer a well-established tank. They originate from the Amazon Basin dark waters . Their ideal aquarium is blackwater with large tree roots, branches, vegetation, and appropriate debris such as almond leaves. As the jungle trees hang over the rivers and streams they don't get a lot of light. They are great schooling community fish when being kept in numbers of 6+.


Neon Tetra

Cardinal Tetra

Ember Tetra

Small but colorful

Again a great fish for community tanks and are social creatures that like to hang out with their own kind.  Not a tight schooling tetra, but prefer to shoal. Recommend 6+ to an aquarium. They too are from the waters of the Amazon.  Add some Catappa leaves (Almond Leaves) and driftwood to make a biotype aquarium.




Serpae Tetra

Due to its ease of care and striking looks, the serpae tetra, like most tetra fish, is a popular species for beginner fish keepers. Serpae tetras live in schools of six or more and boast a beautiful red color and a trapezoidal shape. These peaceful fish get along well with their tank mates and are ideal for those looking for a low-maintenance fish.



Glowlight Tetra

A naturally colored species with a shocking neon orange line on its silvery body and parts of the fins. They originate from murky, tannin-filled waters in South America, so the fluorescent stripe may help them to see each other better so they can stay together as a school.




Rummynose Tetra


Rummy-Nose Tetra

Rudolph the Red Nose Tetras!

When stressed their rosy coloration rapidly fades, so use this warning sign to check your water conditions and other potential problems that may have arisen. These fish are also prized for their tight schooling behavior. There’s nothing like seeing a huge group of rummy nose tetras swimming back and forth in a lushly planted tank. They are great community fish and are not nippers.

Penguin Tetra

Pristella Tetra

Lemon Tetra

Buenos aires

Congo Tetra

Harlequin Rasbora

Bloodfin Tetra

Galaxy Rasbora Danio