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Results 1 to 9 of 9

Thread: I have an idea

  1. #1

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    Default I have an idea


    0 Not allowed!
    I would like to get the glo fish like all the colors and stock my 30 gallon with them and put them under a blacklight and breed them I just need a bit of help figuring out setting this tank up right now i have my livebears in there but i am slowly getting rid of them and not replacing them. any ideas on good stuff to get them to breed and cool decor i can put in to go with the blacklight? plus how many of them would be good for a 30 gallon. I know i can't have snails in there because of the fish eggs so i am thinking about putting a loach out of my cichlid tank in there and letting him have a feast

  2. #2

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    0 Not allowed!
    Are these the brightly colored fish that come in bright orange and green or are these glolight tetras. If they are the brightly colored ones they are just regular danios injected with a jellyfish gene and would breed like normal danios.

  3. #3

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    0 Not allowed!
    GloFish® fluorescent zebrafish is that the ones you are looking at?

    Wow. My g.f. just bought some of the GloFish*. I thought they were died but its their natural color they get from their parents. Some pretty cool stuff i was reading from GloFish.com if thats the ones you were looking at.
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  4. #4

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    0 Not allowed!
    Well,... actually, the black light is not really a good idea. Yes, I know that it is tempting to see the fish glow under it, but UV light can (and very readily does) induce cancer and mutations in the fish. I don't think you would like to inflict such suffering into your fish, right?. It will also make them blind.... and not only the zebra danios, but all other fish too...

    I just wanted to warn you and let you know that, in my opinion, putting a black light lamp in your set up would not be a very humane thing to do.

  5. #5

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    0 Not allowed!
    Quote Originally Posted by alfcea
    Well,... actually, the black light is not really a good idea. Yes, I know that it is tempting to see the fish glow under it, but UV light can (and very readily does) induce cancer and mutations in the fish. I don't think you would like to inflict such suffering into your fish, right?. It will also make them blind.... and not only the zebra danios, but all other fish too...

    I just wanted to warn you and let you know that, in my opinion, putting a black light lamp in your set up would not be a very humane thing to do.
    Black lights are barely a UV light, its UVA which is the safest of all UV light. You would get more uv from a MH with out filtered glass then a black light.
    Besides most fluorescents black lights use different glass to obtain the same effect.
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  6. #6

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    0 Not allowed!
    So my genetics training is calling for me to clear up the misconceptions about glo-fish.

    Glo-fish are actually zebra danios which have flourescent jellyfish genes inserted into their genomes through a knock-in approach. This approach allows the jellyfish genes to actually become a part of the danio genome, so the flourescent coloring may be passed down to their offspring (note that I did say MAY). The injection of the jellyfish genes happens at the blastocyst or even fertilized egg stage so the method is humane and the color, while not natural, will not fade. This differentiates it from painting or tattooing methods which are detrimental to the fish and will fade if the fish survives.

    As far as breeding glo-fish goes, some laboratory animals do show lowered fertility, but they are likely fertile. Say you cross a red glo-fish and a green glo-fish. The possible progeny could be regular zebra danio, green glo-fish, red glo-fish, or a mix of green and red glo-fish (I'm not sure if it would both colors or just a brown). Which progeny you get would depend on which chromosome the jellyfish genes were inserted into. (If you remember Punnett squares from high school biology, you could work through the possibilities).

    As far as the black light goes, maybe you could have one on hand to show off your fish, but keep them under white light normally. I have some regular zebra danios right now and they get so active and playful when I turn their light on, I think they must appreicate it.

    Hope this clears some stuff up!

  7. #7

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    Default


    0 Not allowed!
    Quote Originally Posted by Klug23
    Black lights are barely a UV light, its UVA which is the safest of all UV light. You would get more uv from a MH with out filtered glass then a black light.
    Besides most fluorescents black lights use different glass to obtain the same effect.

    Hello Klug,

    I agree with you that black light (near UV - UVA) is not as dangerous as UVB and UVC; however, it is still energetic enough to induce some damage over long periods of time.... It also promotes oxidation of organics which will eventually lead to damage in various tissues, and this includes corneas, leading to blindness...

    Given the fact that a black light lamp would be on for long(ish) periods of time if it is part of a setup, I expect the damage to tissues to be a real risk.

    Again, I agree that metal halide lamps without a filter glass would emit much more UV light and in a different region of the spectrum, but that does not make black lights any safer, right?

  8. #8

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    0 Not allowed!
    You can't breed glo fish. It is illegal.

    Glo-fish are a patented animal, and although the suppliers say that they are sterilised, I'm willing to bet that a few of them aren't. If you did manage to breed them I wouldn't put it up on a public forum. The companies are very strict on controlling the supply of their "product".

  9. #9

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    0 Not allowed!
    Quote Originally Posted by NickFish
    You can't breed glo fish. It is illegal.

    Glo-fish are a patented animal, and although the suppliers say that they are sterilised, I'm willing to bet that a few of them aren't. If you did manage to breed them I wouldn't put it up on a public forum. The companies are very strict on controlling the supply of their "product".
    Good catch, NickFish, I didn't realize it is illegal. I would also question whether they are really sterile, though, because where would the fish sold in stores come from in the first place (knock-in approaches are very costly and time-consuming and could not be done en-mass)?

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