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Direct sunlight affect calico ranchu's color?

Discussion in 'All Questions from Newbies' started by Ava, Feb 12, 2018.

  1. Ava

    Ava Member

    Joined:
    Feb 9, 2018
    Location:
    San Francisco
    Hello - so, I placed our ranchu outside in our tub during a WC and it was pretty warm (70 to 75 degress) He stayed outside for approx 35 mins. I noticed once I returned him back to his tank, the black on his tail fins and pectoral fins faded and are no longer the black color.

    • Is this normal and did the sunlight affect this?
    • Is it healthy for ranchus to get direct sunlight, or is it not necessary?

    If so, I wonder if I should keep our aquarium away from direct sunlight. Here are before and after pics:

    before.jpeg after.jpg

    Thanks!!
     
  2. Calipso

    Calipso Active Member

    Joined:
    Jan 20, 2018
    Location:
    Ontario
    Interesting! I have absolutely no clue what effect direct sunlight has on a gold, besides raising the temperature of the tank and promoting algae growth (potentially clouding up the water). It'd be fascinating to find out if color is truly affected at all by direct sunlight and how quickly!

    Are these directly before and after photo's??
     
  3. Ava

    Ava Member

    Joined:
    Feb 9, 2018
    Location:
    San Francisco
    Calipso - I would say, less than an hour after I returned him to the tank the fading of the black color was noticeable. I'm mind boggled...

    What is the best way to retain a ranchu's color? Black or blue background on the walls of the aquarium? I've doing some research and some folks in the web believe the background of the tank may cause this. IDK.
     
  4. Calipso

    Calipso Active Member

    Joined:
    Jan 20, 2018
    Location:
    Ontario
    According to this website, direct sunlight should be maintaining the black coloration, but I mean... it's just one website.
    It'll be interesting to see what other members find out/have experienced.
     
  5. joe

    joe Well-Known Member

    Joined:
    Dec 13, 2008
    Location:
    I live in Miami Florida
    many factors go into a fish maintaining it's color. Genetics, sunlight, food, all play a part. Exposing your fish to sunlight will only be beneficial
     
    nolaveils likes this.
  6. afnaveils

    afnaveils Goldfish breeder

    Joined:
    Dec 22, 2008
    Location:
    Montreal, Qc, Canada
    What color was the background/tub when it was in the sunlight?
     
    orangecrush likes this.
  7. Ava

    Ava Member

    Joined:
    Feb 9, 2018
    Location:
    San Francisco
    it was in a clear tub in the sunlight. Would that explain the lighter color?

    I was hoping to place our 40B tank next to our window in the sunlight, but fearing it may make his color fade even more.
     
  8. afnaveils

    afnaveils Goldfish breeder

    Joined:
    Dec 22, 2008
    Location:
    Montreal, Qc, Canada
    Yes, natural camouflage, defense mechanism...
     
  9. joe

    joe Well-Known Member

    Joined:
    Dec 13, 2008
    Location:
    I live in Miami Florida
    I would be more concern about "How much direct sun light you will be getting" That could really heat up your water too much. Goldfish exposed to sunlight do best when their shade provided. Just the exposure to natural light will enhance colors and health. It does not have to be direct sun light.
     
  10. El Djago

    El Djago Active Member

    Joined:
    Feb 15, 2017
    Location:
    Mindanao
    It's not the sunlight IMO, if you have different temperatures in your tank and tub, also the quality of water. i usually experience this when choosing a fish from a pond and putting it in a tank for viewing with water not coming from the pond.
     
  11. orangecrush

    orangecrush Well-Known Member

    Joined:
    Jan 14, 2016
    Location:
    Loma Linda, CA 92354
    Gerard, could you please discuss this in more detail.

    Thank you, Jim.
     
  12. afnaveils

    afnaveils Goldfish breeder

    Joined:
    Dec 22, 2008
    Location:
    Montreal, Qc, Canada
    Oh, I'm no biologist but I learnt about predators and preys relationship, species survival, physical adaptation, etc. So, the goldfish naturally blends into the light colored background in order not to be easily seen and be a prey. My interpretation...
     
  13. QandO

    QandO Active Member

    Joined:
    Feb 4, 2016
    Location:
    Pennsylvania
    Was it sunny out? I’ve heard if Koi getting sunburnt (never experienced it personally though). Looks like the fish got bleached. I bet he’ll return to normal as long as there is good water. Let us know how it goes!
     

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