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Trigonostigma hengeli - Glowlight rasbora

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  • Trigonostigma hengeli - Glowlight rasbora


    Photo thanks to watfish


    Photo thanks to dwagn

    Name:
    Scientific name: Trigonostigma hengeli - Glowlight rasbora
    Common name: Glowlight rasbora
    AKA: Hengel's rasbora, Porkchop rasbora

    Country of origin:
    South-East Asia

    pH: 5.0 - 7.5
    Temperature: 23 - 28c
    Hardness: 18 - 179 ppm
    Water flow: low - standard
    Oxygenation: standard

    Maximum size: 3cm

    Diet: Live, frozen, flake & pellet foods.

    Breeding: Males - slimmer, smaller & more brightly coloured.
    Breeds at 28c in soft acidic water.
    Pairs 1 year+ old spawn on the underside of leaves, crypts are ideal. The eggs stick to the leaves.
    Remove the parents once they have spawned to prevent predation on eggs & fry.
    Feed fry on infusoria, then BBS.

    Tank companions: It lives in a similar habitat to South American fish, and goes well with other peaceful tetras, cardinals, corydoras, even discus. It is peaceful, and a good community fish.

    It naturally occurs with Betta simplex.

    It is a shoaling fish, and should be in a group of 8 or more.

    As with all fish, it will eat anything it can fit in its mouth, and equally can be eaten by fish able to fit it in their mouth. It is a relatively small fish, and this should be taken into account when choosing tank companions.

    Tank:
    Minimum of 3ft tank for a small group.

    It does best in a tank with a dark substrate, with heavy planting & low light, or alternately a bioscape with sand, driftwood, crypts and tannins. There is a list of low-light plants here:
    http://www.aquariumlife.com.au/showt...ank-companions

    It is often confused with very similar species -
    Trigonostigma heteromorpha - copper with black triangle
    http://www.aquariumlife.com.au/conte...arlequin-tetra
    Trigonostigma hengeli - clearer fish, copper above & below black lambchop mark
    Trigonostigma espei - copper with black lambchop mark
    http://www.aquariumlife.com.au/conte...alse-harlequin
    Trigonostigma somphongsi - the black is a thin stripe only. Extremely rare in the trade.

    Trigonopoma pauciperforatum - also known as "Glowlight rasbora"
    http://www.aquariumlife.com.au/conte...wlight-Rasbora

    Trigonostigma hengeli are legal imports to Australia as of 21/10/2013:
    http://www.environment.gov.au/biodiv...mport-list.pdf

    The IUCN Red List reports Trigonostigma hengeli as a species which has not yet been assessed at 21/10/2013:
    http://www.iucnredlist.org/search

    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.

    It is a good fish for beginners.


    Photo thanks to dwagn - retouched


    Photo thanks to JayIII


    Photo thanks to DiscusEden


    Photo thanks to DiscusEden

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