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This profile was written by popsbjd an active contributor to the site.  

South America


Moenkhausia pittieri

Moenkhausia pittieri


    While often overlooked in stores, the diamond tetra, once settled into your aquarium, is a striking fish. Its silver body is punctuated with shimmering scales that can take on a variety of colors under the right light.

Quick stats:

    Listed tank sizes are the minimum
    Size: Usually under 3 inches (7.5 cm)
    Tank: 20 gallon long for a proper school
    Strata: Will go everywhere but predominantly Lower to Middle level.
    PH: 5.5 - 7.5
    Hardness: Soft to medium: dh range 0.0 - 12.0
    Temperature: 75°F to 82°F (24°-28° C)


    Order: Characiformes
    Family: Characidae
    Genera: (Incertae sedis) Moenkhausia
    Species: pittieri


Common name:

    Diamond tetra
Image gallery:
    Additional species photographs


    Badmans' Forum


    South America: In and around Lake Valencia in Venezuela.

General Body Form:
    The diamond tetra is heavily built. The dorsal fin is sickle shaped trailing toward the tail. Males’ dorsal fins are longer, reaching almost to the tail.

    The diamond tetra’s overall coloration is silver with a green or blue shine. The eye has a red spot at the top. The diamond tetra gets its name from the numerous scales that shimmer with orange, green, or gold. While young the shimmer isn’t apparent. Once they reach adulthood, they are quite beautiful.

    The diamond tetra can adapt to a wide range of water conditions. It is best kept in soft, slightly acidic water. The diamond tetras habitat is slow moving, heavily vegetated areas of lakes and streams. Thus, a planted tank is appreciated. A 20 gallon tank is suitable for a small school of 6+ tetras; however, the large group you can get the better. This is a very active fish that shouldn’t be combined with fish that spook easily. It needs plenty of swimming space. The diamond tetra is omnivorous and will accept a wide variety of flake, frozen, or freeze dried food. In the wild, they eat larvae and small crustaceans so live food will be devoured in short order.



    In the wild these will eat small crustaceans, worms and daphnia. In the aquarium they will eat most anything offered to them. Such as, Daphnia, freeze dried blood worms, Brine shrimp as well as flakes and granules.

    The Diamond tetra is easily bred. In fact, they can be bred in a community aquarium if enough cover is given, such as java moss, for fry to hide. Condition the tetras on high quality food. Start with a dark tank, gradually increasing light until spawning occurs.

    Found in lakes and slow moving South American streams.

Your comments:


Please remember that the following comments are personal experiences and may or may not apply to your setup. Use them as guide to help better understand your fish, like us all individuals will behave differently under different circumstances.


From: Dev
I had 6 in my 29G tank. It is really nice fish. Under proper light it looks stunning (shades of blue, green and gold). These are very peaceful fish. Males are nice when they display. For a planted tank I definitely recommend these fish.






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