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Blue/neon Rainbowfish

Discussion in 'Oddballs' started by platyperson, May 7, 2005.

  1. platyperson

    platyperson Member

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    Why should I tell you?
    Common name(s): Blue Neon Rainbowfish, Neon Rainbowfish, Blue Rainbow fish, Peacock Rainbowfish.

    Scientific name: Melanotaenia praecox

    Familly: Melanotaeniidae

    Origin: New Guinea, near Iritoi, Siewa and Dabra and in the small areas of the Mamberamo river system.

    Maximum size: 6cm (2 and a half Inches)

    Care: When they are first introduced into the aquarium, they will hover a few centimetres above the ground, turn off the tank lights and they will settled in, in a matter of seconds. Temperature shouldnt exceed 81F, they require soft (60-100 mg/l) and acidic (Ph: 6.5-7.5)
    water. They inhabit fast flowing waters so well oxygenated water and a medium to strong water current is essential to make them feel at home. They prefer floating plants to diffuse the light as this will intensify their colors and make them secure. They are extremely hardy, but do not let nitrates exceed 20 mg/l. Tanks between 15-20 gallons can easilly accomodate a shoal of three (two females and one male)

    Feeding: They will take prepared, dry, vegi and livefoods although they prefer sinking foods, as they are very lazy! But if you have had them since they were fry they will get used to taking food directly from the surface. You MUST include some vegitable matter in their diet. A mixture of frozen livefoods (bloodworms and daphnia are recommended) and some vegitables (Lettuce and cucumber) are essential to ensure good coloration and immunity to disease. Peas that are not small enough will be ignored, cucumber seems to be a very good alternative.

    Sexing and breeding: Males usually have red edgeing on the fins although you may occasionally get a female with this characteristic. Most females are light yellow/ gray finned. Both sexes are covered in beuatifull purple/blue scales. Condition the females in the same tank for three weeks. Give live brine shrimp, daphnia and tubifex worms. Have a spare tank ready, use a sandy substrate, and decorate with thin leaved plants or use a spawning mop.
    Then transfer a couple of conditioned females to a spawning tank with a male. He will chase them into a section of plants while flaring his fins and intensing his colors. If the females are receptive to his display, they will lay there eggs. The fry can take over 2 weeks to hatch. Have an infusoria culture ready. The newborns will stay on the bottom of the tank. Around 14 hours after hatching, they will have absored their yolk sacs so give them there first feed using infusoria or a commercial subsititute.

    Comments: These fishes are quite long lived, they make ideal begginers fish and will do better than most other livebearers as they do not require aquillibrium salt and they will not unexpectedly breed and cause iverpopulation as their breeding is very easilly controlled.
    They are very beautifull and before you finish with your hobby, you must keep these fish they have amazing characters and colors. They are a real treat to watch. They socialise with other peacefull community fish, just avoid aggresive/ fin nipping tankmates. A recently discovered strain had a red line going through its body.

    The picture provided is a male with the standard red male finnage.

    Picture_1.jpg

     
  2. Jenll

    Jenll Member

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    at last! I have searched all over t'internet for some basic, good information on Blue Rainbows! and I have found it! Hurrah! :lol:

    I have two blue rainbows both of whom are a bit mad, but lovely and very much fun to watch! Last night however, one of them started to flash the strip along his head and down his/her back to a bright yellow... i presumed that this was some form of mating ritual (as we weren't sure whether we had one of each or not) but i haven't been able to find anything...

    Having read the above however, I'm now more inclined to think its mating rather than just going a bit loopy! :lol:

    So thank you!!! :thumbs:
     
  3. boyneburn

    boyneburn Member

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    Neon Rainbows & Blue Rainbows are two different fish.Below is a link th Blue rainbows.


    http://www.centralpets.com/animals/fish/fr...sh/fwf4605.html

    Mod. Comment: Many fish go by many different names all over the world. Unfortunately, this will probably never change. However, the 'valid' taxonomic name is the best identifier and this post is for Melanotaenia praecox. I find the information in the TFF Index post to be correct and the various common names have been associated with this fish.
     
  4. Liam

    Liam Member

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  5. n3ont3tra

    n3ont3tra Lets go Flyers

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    Great picture.

    Maybe it's just mine, but I found this fish to be extremely skittish. I had 3 in a 29g tank and whenever I got near the tank they'd freak out and run into the walls and hide... I'd recommend at least a four foot tank and a group of at least 6. :)
     
  6. Genesis

    Genesis If you're a cory and you know it clap your.. hands

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    Here is a picture of one of my males;

    [​IMG]

    :fish:




    - Genesis
     
  7. foley69

    foley69 Member

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    i have just got 6 of these in my 25gal tank and i love them they dont stop darting round the tank chasing each other as if they were playing tig i highly reccomend these little guys to anybody wanting a lively shoaling fish.

    also the reason why these fish get skittish in small groups is due to them actually being a shoaling fish people may think keeping 3 together is good but you wont see their true personalities unless you have at least six
     
  8. trojannemo

    trojannemo Member

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    this is my male. i've had him since 9/18/2008 so that makes him about a year old considering his development.

    watch the progression into the rainbow shape with the pics from from when i got him to now:

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]


    he now resides with 5 other rainbows. i'm currently on the lookout for a female for him :shifty:
     
  9. pcmthmes19

    pcmthmes19 Member

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    I've had six of them for over five years now and the red and yellow fringe are the leading factor telling me when to change water. The red/yellow are colorful and stand out from the body when fish are healthy in good water; those colors fade and lay closer against the body when unhealthy or water needs changing. When I had three, they were relatively stationary, but upon putting six together they became faster and more active swimmers. If you can give them a small section of the tank that is shaded they will rest there, but the majority of the time be out in mid to top levels. They mix very well with my Boesemani Rainbows, Long-Fin Rosy Barbs, various Loaches and Red-Tailed Shark.
     

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