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Cochus Blue Tetra 3cm

Cochus Blue Tetra 3cm
  • Buy 5 for $5.80 each and save 12%
  • Buy 10 for $5.30 each and save 20%

Availability: In stock



The maximum size of the peaceful Cochu Blue Tetra is approximately 5cm. Once established in stable aquaria, they are easily kept. It is best to add live blackworms and frozen bloodworms to their diet, although a good quality dry food is acceptable.

Tetras are considered easy to keep in a community aquarium of at least 20L, with a pH of 5.07.0 and KH of 1.02.0. However, they will not tolerate dramatic changes to their environment. The Tetra can live 10 years or more with the proper conditions. They tend to be timid and, because of their small size, should not be kept with large or aggressive fish who may bully or simply eat them.

Fish that mix well in an aquarium are other types of tetras, and other community fish that live well in an ideal Tetra water condition. Mid-level feeders, they are best kept in schools of five to eight or more, for the "shoaling" effect when they move around the tank. They shoal naturally in the wild and are thus happier, more brightly coloured, and more active when kept as a shoal as opposed to singly.

Tetras are best kept in a densely planted tank with subdued light and an ideal temperature of 2024?C to resemble their native Amazon environment. Tetras are omnivores and will accept most flake foods, but should also have some small foods such as brine shrimp, daphnia, freeze-dried bloodworms, tubifex, and micro pellet food to supplement their diet.
Additional Information

Additional Information

Scientific Name No
Size 3

Customer Reviews 4 item(s)

They arrived with a few dead but it's the first time in my years of purchases from Livefish and I'm getting free new ones.

The remaining try to school with my rummynose and silvertip and it's quite amusing to watch.

I was surprised to find out their PURPLE colour after 2 days and that's absolutely beautiful.
Customer Rating
Review by William / (Posted on 1/02/2016)
Pretty fish, amazing service
Purchased 5 of these along with 10 neons, all the fish arrived in perfect condition and their colouration returned within a day of being in the tank.

Such a great service as I live in north WA and getting healthy fish up here was an impossibility until I found this site! Thank you.
Customer Rating
Review by Sharna / (Posted on 17/12/2012)
Pretty Fish
Sadly I was only able to get 3 out of the 10 I ordered but these are quite pretty fish. Lovely addition to the tank. Beautiful against the greenery.
Customer Rating
Review by Michelle / (Posted on 12/12/2010)
Fiesty little fellas!
I ordered 9 of these guys a few weeks ago and all 9 arrived alive and healthy. They settled into my tank very nicely after I drip acclimatised them as suggested by livefish. They are very active and have filled the gap in my tank towards to middle to top region. They get along great with my Rummynose Tetras and Bolivian Butterfly/Ram. They aren't as tight schoolers as the Rummynose but they are a great addition.

The Cochu's Blue Tetras I received from livefish are very healthy and have great colouration once they settled into my tank. They're always doing something interesting to watch. :)
Customer Rating
Review by Joseph / (Posted on 26/10/2010)