Guppy Lighting Question

  • Thread starter Heron
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  • #1


Well Known
Hello everyone. I have been keeping guppies for a few years and have always kept the lighting timer at 12h on 12h off. I was chatting with a friend today who told me he found his guppies bred quicker with 16h on and 8 off. I was told 12/12 when I bought my first guppies and I have never questioned it. I would like to know what other guppy keepers do and whether it actually makes a difference. The scientist in me feels an experiment coming on but the fish keeper thinks if something is working don't touch.
  • #2


Fishlore Legend
Sounds like your routine is working. I’ve had guppies for 2 years and have always had the lights on for 8 hours and they have always bred for me. I have probably 10-15 generations of guppies that derived from 1 male and 2 females at the start
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