Clear Tetras After Turning On Light??? Help

Discussion in 'Cardinal Tetra' started by Sam Rosenbaum, May 24, 2018.

  1. Sam Rosenbaum

    Sam RosenbaumNew MemberMember

    I turned on my light realizing I need to add some water and noticed my 5 cardinal tetras have their blue strip but the red is gone and they are clear, is this a nocturnal thing.

    PS there are breeding GBR'S in the tank caused by stress?
     

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  2. Kevin Dennis

    Kevin DennisValued MemberMember

    A lot of fish lose their color in darkness.
     
  3. DoubleDutch

    DoubleDutchFishlore LegendMember

    completely normal
     
  4. JoeCamaro

    JoeCamaroWell Known MemberMember

    Same thing happen to my neon tetras. I sometimes think they get shocked when lights are suddenly turned on so what I do, at night before the timer turns the lights off, I turn the switch to the blue light mode. That way in the morning when they turn on automatically is not as bright. Then I change it to white light once they have seen light from the kitchen and living room. I don't know if it makes a difference, but I like to think it does.
     




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