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Trigonopoma pauciperforatum - Glowlight Rasbora


  • Trigonopoma pauciperforatum - Glowlight Rasbora

    Photo thanks to Aquasaur

    Scientific name: Trigonopoma pauciperforatum
    Common name: Glowlight Rasbora
    AKA: Redline rasbora, Redstripe rasbora

    Country of origin:
    Southeast Asia

    pH: 4.5 - 7.5
    Temperature: 21 - 26c
    Hardness: 0 - 179 ppm
    Water flow: Standard
    Oxygenation: Standard

    Maximum size: 6cm.

    Diet: As such a small fish it requires crushed flake or tiny pellets. It does well on Aquagreen's fish food (which is a crushed powder), or other tiny crushed food. They appreciate live food such as BBS (baby brine shrimp or black worms if they are crushed to size, but will readily take frozen or dried. They will take shrimplets to a moderate size if kept with shrimp. They do benefit from some live food.

    males - slimmer, smaller, more brightly coloured
    females - rounder, larger

    They are an egg scatterer, and if provided with a mop or sufficient moss or plants, they can lay eggs, however they need to be kept from them by a division in the tank, or removal of the eggs or fish, otherwise they will eat the eggs or fry.

    Tank companions: Actively hunts shrimplets. In a large (4ft+ heavily planted tank) with an established large population of shrimp, the losses may be able to be sustained, however in a small (2ft or less tank), it would wipe out the shrimp population or stop it growing at best.

    Other microfish are suitable tankmates. Although it does hunt shrimp, and would hunt eggs and fry, given the opportunity, it is a reasonably peaceful (in the sense of not troublemaking) tankmate. It is a shy fish at feeding time - keeping it with boisterous or assertive fish may mean it is unable to eat and will starve.

    It schools well. It should be kept in a group of 8+.

    They naturally occur in water with high levels of tannins, and will look at their best in this setting.

    They appreciate dark substrate and a heavily planted low light tank, or a biotype tank, with driftwood, high tannins, and crypts, blyxa japonica, etc. They require good water quality, with frequent water changes.
    There is a list of low light plants here:

    The colour of their lateral stripe can vary from bright orange to yellow, depending on the fish's genetics, diet & mood.

    Being an active fish, they would need at least a 3ft tank, despite their small size.

    Confused with:
    Hemigrammus erythrozonus - Glowlight tetra

    Trigonopoma pauciperforatum are NOT legal imports to Australia as of 20/10/2013:
    however they may have been on previous import lists, have entered Australia prior to the implementation of import lists, or been misidentified on importation.

    The IUCN Red List reports Trigonopoma pauciperforatum as a species of least concern with a stable population trend 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 experienced hobbyists.

    Photo thanks to Aquasaur

    Photo thanks to Aquasaur
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