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Pseudomugil gertrudae - Spotted Blue-eye

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  • Pseudomugil gertrudae - Spotted Blue-eye


    Photo thanks to Dave Wilson, Aquagreen

    Spotted Blue-eye

    Pseudomugil gertrudae

    General information: Natural habitat - the brood stock for this cultured species was obtained from a collection from a small billabong about one kilometre east of the Cadell River, Central Arnhem Land. A percentage of the farm gate sales are returned to the traditional owner of the area to help with land management. Water quality in the billabong where the brood stock was collected was checked but all times when collections occurred were in the dry season so temperatures and the measurements will not be a true average. Temperature approx 27 deg C, hardness 64ppm average (3.5deg), carbonate hardness 55ppm (3 deg), pH 6.7 average. Size - they are reported to grow to 4 cm. Diet - the natural diet is unknown but generally believed that the blue-eyes eat small crustaceans and insects. The photos are from left to right, 1. a wild male photo by Dave Wilson. 2. A young captive bred male, photo by Gunther Schmida. 3. Approximate distribution, map drawn by Dave Wilson. 4. A male with yellow bottom lobe on caudal fin, photo by Dave Wilson.

    Cultivation notes: Aquarium set up - a small aquarium about 30cm is OK, well planted with darker gravel will bring out the best colour. Place the aquarium where it will receive some morning sunlight and you will be rewarded with a magnificent display when the fishes are illuminated by natural light. Water quality at the place where they are cultured is generally temp 27 deg C, pH 7.0, hardness 50ppm, alkalinity or carbonate hardness about 60ppm. Captive diet - can be fed most prepared foods but will not thrive on dry flake foods, it needs a portion of live foods once or twice a week such as daphnia or mosquito wrigglers. Size - grows to 4.0 cm in captivity. Breeding occurs most days where females are attracted to a suitable spawning site by displaying males where they lay two or three eggs which take about 10 days to hatch. the fry can be raised on commercial fry starters and are quite large so accept new hatched brine shrimp within a few days of hatching.

    Distribution: The map shows the approximate locations in Qld, NT and New Guinea.

    Reference: Allen (1995)"Rainbowfishes, In Nature and the Aquarium". Allen, Midgley and Allen (2002) "Field Guide to the Freshwater fishes of Australia". ANGFA database available at URL http://db.angfa.org.au


    Photo thanks to Dave Wilson, Aquagreen


    Photo thanks to Dave Wilson, Aquagreen


    Photo thanks to Dave Wilson, Aquagreen


    Article with thanks to & permission of Dave Wilson, Aquagreen

    • DiscusEden
      #1
      DiscusEden commented
      Editing a comment
      Pseudomugil gertrudae are NOT legal imports to Australia as of 20/10/2013:
      http://www.environment.gov.au/biodiv...mport-list.pdf
      however, as Australian natives, they can legally be purchased from Australian stock.

      The IUCN Red List reports Pseudomugil gertrudae as a species which has not yet been assessed at 20/10/2013:
      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.

    • DiscusEden
      #2
      DiscusEden commented
      Editing a comment
      Occurs with in native habitat & won't interbreed with P. tenellus:
      http://www.aquariumlife.com.au/showt...er-pseudomugil
    Posting comments is disabled.

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