Cardinal Tetra

Live FishSKU: CT969

Quantity?: Single (1)
Sale price£2.95


Cardinal Tetra

These very popular community tropical fish are a great addition for beginners. They are bright, lively fish that are happy in a shoal. This tiny characin comes from the soft, acidic waters of the Rio Negro drainage in Brazil and reaches just a couple of centimetres in length. It’s a gregarious species that appreciates being in a large group and makes for a stunning aquarium showpiece.

Approx. supplied size: 1-2cm
Maximum size: 5cm
Origin: South American
Ideal number kept together: 5+

Water Conditions
Our conditions: pH 7.5, temp 25 °C
Ideal pH: 6.5–7.5
Hardness: 18–215 ppm
Ideal Temperature: 23–29 °C

Ease of Care
Easy. Relatively hardy fish however they thrive in lower pH and blackwater conditions. Slow filter flow is best.

Flake is recommended mainly however can have small live & frozen food such as Daphnia & Artemia. Dried bloodworm as a treat.

Peaceful community fish that thrives in groups. Cardinal tetra look far better in very large shoals in much larger aquariums. Invest in a shoal of 30+ if you have a big enough tank. Cardinals are ideal community fish and do not bother other fishes. However, they are quite small so ensure any other fish kept with them are not going to try and eat them. Angelfish can often prey on Cardinals. Popular tankmates include Rummynose tetra, Otocinclus, pencilfish, hatchetfish, and Corydoras.

Intermediate. They will need their own tank, dimly lit and perfect water conditions. Males fertilise as the female scatters up to 500 eggs. Once laid the eggs can sink and stick to plants.

Life Span
Cardinal Tetra are fairly intensively bred in captivity, so the lifespan of a Cardinal Tetra varies and can range from 1-5 years in perfect conditions.

For more information on general fishkeeping and our shipping procedures click here.

cardinal tetra

In stock orders placed before 2pm will be despatched on the same working day (not including palletised items, pond plants or fibreglass ponds).

Pre-orders are shipped once we have the stock available and will be shipped using the service chosen at checkout.

All services are working day services and do not include delivery on Saturdays and Sundays or public holidays as standard. Deliveries are usually Monday to Friday only, although some Royal Mail items may be delivered on weekends as standard if the service is available in your area.

 Packet/Courier items    
 Royal Mail (2-3 days)  £0.00-£49.99 £2.99
 Royal Mail Next Day (1-2 days)  £0.00-£49.99 £4.99
 Parcelforce 24 (1 day)  £0.00-£49.99 £7.99
 Parcelforce 24 (1 day)  £50 and up FREE
 Pallets (booked in)  aquariums / bulky items  

 Pallets Standard (3-5 days)


 Pallets Express (1-2 days)

 - £39.99


*EXCLUDED ITEMS  extra delivery fees apply:
 Fibreglass Ponds (booked in)    

 Zone 1 (7-10 days)

 - £79.99
 Zone 2 (7-14 days)  - £149.99
 Zone 3 (7-21 days)  - £249.99
Pond Plants (direct from grower)
All pond plants (3-10 days) one-off fee regardless of order size/value £5.99

Please see our full delivery information page and terms and conditions for detailed information on shipping policies and zones

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