No announcement yet.

Nannostomus eques - Hockeystick Pencilfish


  • Nannostomus eques - Hockeystick Pencilfish

    Photo thanks to forocious

    Photo thanks to briztoon

    Scientific name: Nannostomus eques
    Common name: Hockeystick Pencilfish
    AKA: Brown/Rocket/Brown-tailed/Diptail/Tubemouth pencilfish/ Poeciliobrycon eques/ Poeciliobrycon auratus/ Nannobrycon

    Country of origin:
    South America - Peru, Brazil, Columbia, Guyana

    pH: 4.5 - 7.5
    Temperature: 22 - 28c
    Hardness: 18 - 179 ppm
    Water flow: low - standard
    Oxygenation: standard

    Maximum size: 3.5cm

    Diet: Live, frozen, flake & pellet food of a siutable (very small) size - they are micropredators.

    Males: more colourful & slimmer

    They lay eggs on the underside of plant leaves. They will predate on their own eggs and fry, so either the fish or eggs should be removed to a seperate tank.

    Tank companions: They hunt red cherry shrimps as adults.They would try for crystal red adult shrimps, but they not be able to kill them unless working together. They would certianly take shrimplets until near adult size. They are OK with Caradina typus, which are much larger.

    Other microfish are suitable tankmates, such as bororas; danios; chocolate, liquorice & sparkling gouramis; green neon & ember tetras; male endlers and royal whiptails, although they are very shy, so a species only tank is preferable. They live in their natural habitat with apistogramma species. Despite their continual non-stop hunting of shrimplets, I have never observed them to display any aggression toward or interest in other fish as prey.

    They should be kept in a group of 10+, which will help to spread aggression, although they rarely hurt each other.

    They swim at the middle to top of the tank.

    Mimimum tank size is 3ft for a small group.

    They prefer a dark substrate, heavily planted, with blackwater from decaying leaves (Indian Almond Leaves are ideal) and floating plants.

    They require a mature tank - do not add them immediately after setting up a new tank.

    They swim at an angle, with their heads up - which is why they are called eques - for horse or rider.

    Their colour will probably fade when the lights are off, and return gradually as the lights come on. They can have a vertical bar pettern after lights off.

    Confused with:
    There are 19 species in the genus:

    Nannostomus anduzei
    Nannostomus beckfordi - Gold line/ Beckford's/ Golden/Brown pencilfish
    Nannostomus bifasciatus - Two-lined/whiteside pencilfish
    Nannostomus britskii - Spotstripe pencilfish
    Nannostomus digrammus - Twostripe pencilfish
    Nannostomus eques - Honeystick/Brown/Rocket/Brown-tailed/Diptail/Tubemouth pencilfish
    Nannostomus espei - Espe's/Barred pencilfish
    Nannostomus grandis
    Nannostomus harrisoni - Harrison's/blackstripe pencilfish
    Nannostomus limatus - Elegant pencilfish
    Nannostomus marginatus - Dwarf pencilfish
    Nannostomus marilynae - Marilyn's/greenstripe pencilfish
    Nannostomus minimus - Least pencilfish
    Nannostomus mortenthaleri - Coral-red pencilfish
    Nannostomus nigrotaeniatus
    Nannostomus nitidus - Shining pencilfish
    Nannostomus rubrocaudatus - Purple pencilfish
    Nannostomus trifasciatus - Threestripe/Three-lined pencilfish
    Nannostomus unifasciatus - Oneline pencilfish

    All Nannostomus spp. are legal imports to Australia as of 20/10/2013:

    The IUCN Red List reports Nannostomus mortenthaleri as a species which has not yet been assessed at 21/10/2013:

    It is very important not to release any aquarium specimens into our waterways. Any that are not sold or re-homed/ given away, can often be re-sold to aquarium stores. If they are homed in ponds, care should be taken that they cannot escape in run-off into our waterways. Even if fish are native & local they should not be moved from one waterway to another, as this can transfer disease. If they are not local fish, they can both spread disease and either out-compete or eat local fish, shrimp & plants, causing their demise.

    They are a good fish for people with some experience (beginners +1).

    Relevant threads:

    Video, keeping/treating with tea-tree & other advice:

    Video of males sparring, keeping with shrimp:

      Posting comments is disabled.



    Latest Articles


    • AAA Mk2 Contents of fish section N-Z - Common & Scientific names
      by SOLOMON
      Nannostomus beckfordi Gold line Pencilfish/ Beckford's pencil fish, Gold pencil fish, Golden pencil fish 5.0 - 8.0 21 - 27c Article
      Nannostomus eques Hockeystick Pencilfish/ Brown/Rocket/Brown-tailed/Diptail/Tubemouth pencilfish/ Poeciliobrycon eques/ Poeciliobrycon auratus/ Nannobrycon 4.5 - 7.5 22 - 28c Article
      13-02-15, 12:01 PM
    • Mk2 AAA Contents of fish section N-Z - Common & Scientific names
      by SOLOMON
      13-02-15, 11:12 AM
    • AAA Contents of fish section N-Z - Common & Scientific names
      by DiscusEden
      Nannostomus beckfordi Gold line Pencilfish/ Beckford's pencil fish, Gold pencil fish, Golden pencil fish 5.0 - 8.0 21 - 27c Article
      12-02-15, 04:23 PM
    • Notesthes robusta - Bullrout
      by DiscusEden
      Bullrout Notesthes robusta

      Photo thanks to murrayman85

      pH Level: 7.0 - 8.0
      General Hardness: Moderate
      Max. Size: 30cm
      Realistic Max. Size: 30cm
      Tank Size: 4X1.5X1.5
      Feeding: Usually will take any high protein pellets, live and frozen meaty foods. Can be difficult/impossible to wean.
      Temperament: Aggressive as they mature.

      About: Native to NSW and Southern Queensland, Bullrout or freshwater...
      11-02-15, 07:39 PM
    • Butis butis - Crazy Fish
      by DiscusEden
      Crazy Fish Butis butis

      Photo thanks to Capitan Primero

      Temperature: 20 - 27c
      pH Level: 7.0 - 8.2
      General Hardness: Moderate - Hard
      Max. Size: 13cm
      Realistic Max. Size: 13cm
      Tank Size: 3x1.5x1.5
      Feeding: Carnivore, preference for live or frozen food, can be difficult to wean onto pellets.
      Temperament: Generally Peaceful but will eat smaller fish.

      About: Butis are known as Crazy Fish because they...
      11-02-15, 07:13 PM
    • Neoceratodus fosteri - Australian Lungfish
      by DiscusEden
      Australian Lungfish Neoceratodus fosteri

      Picture thanks to Neil Armstrong & Dave Wilson, Aquagreen

      Temperature: 10 - 30c
      pH Level: 6 - 8
      General Hardness: hard
      Max. Size: 1.5m
      Realistic Max. Size: 1 Meter +
      Tank Size: 6x2x2
      Feeding: Worms, Shrimp, snails, beef heart, etc.
      Temperament: Peaceful though sometimes nippy and will eat small fish.

      About: Wow, where to start? These ancient fish have been...
      11-02-15, 06:43 PM
    X, pub-5201535165471905, DIRECT, f08c47fec0942fa0