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The Lemon Tetra is a peaceful & hardy shoaling species and enjoys a planted aquarium in groups of 6 or more. Suited to beginner aquarists this energetic fish adds a pop of colour to your aquarium. 

Lemon tetras are native to South America and inhabit parts of the Amazon River


Features of Lemon Tetra's:

  • Transparent body that shines with a red eye
  • A fine black line on the caudal fin
  • Bold black line on anal fins with bright yellow section, more prominent in males
  • Classic diamond shaped "tetra" body slightly deeper bodied
  • Energetic and active swimmers 
  • Grows up to 5cm

The Best Aquarium Size for Lemon Tetra's:

The minimum tank size for a small group of Neon Black Tetra's is 50L. The Lemon Tetra will occupy the top to middle water column in the aquarium. They are active swimmers so if keeper a group larger than 6, opt for a larger aquarium.

After an Aquarium for your fish? Browse our Aquarium Tank Selection here.

Tank Mate Compatibility:

The Lemon Tetra are a shoaling fish and should be kept in schools of 6 or more. This species does well with other similarly sized and peaceful community fish.

Great tank mates for Lemon Tetra's include:

 Coburg Aquarium, specialize in a large range of species of live fish.

Feeding :

Lemon Tetra's are omnivores and should have a varied diet for optimal health. They will accept flakes and pellets, and their diet should be supplemented with spirulina, blackworms, bloodworms, brine shrimp, and daphnia. 

Check out our extensive range of aquarium fish foods.


Lemon Tetra Fish Tank Setup:

Aquarium Filtration

Naturally found in slow moving streams, mimic the Lemon Tetra's natural environment by using a good aquarium filter that won’t create strong water movements. They are a hardy species but enjoy stable and clean waters.

Browse aquarium filters here.


Aquatic Plants for Lemon Tetra's

The Lemon Tetra is naturally found black waters heavily vegetated with plenty of driftwood. It provides shade & spaces to hide to ensure happy fish. The following live aquatic plants will do better in low light aquariums.

Interested in live plants for your aquariums? Browse live plants here.

Tank Decorations for Lemon Tetra's

Lemon Tetra's enjoy black water aquariums and soft acidic water. The colour of fish are enhanced when conditions are ideal and fish are less stressed. Add driftwood and natural decorations that release tannins to mimic their natural environment. 

Check out our Aquarium Ornaments.

Substrate for Lemon Tetra's

Dark coloured substrates enhance the colour of the fish and help lower light levels, reducing stress. They prefer sandy substrates.

A variety of Substrates are available at Coburg Aquarium. 

Additional Information

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Fish Keeping Snapshot :

Preferred Water Parameters :

Aquarium Set-up Service:

Our design team enables us to create the tank you desire, install your tank where you wish to and provide a maintenance service to ensure everything runs smoothly. We can create almost any aquarium from the small home aquarium to large commercial aquariums for offices, hotels or restaurants. Coburg Aquarium, Australia's leading aquarium shop.

Please contact us if you need any custom tank services.