Guppy Lighting Question

Heron

Well Known
Member
Messages
1,115
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.
 

kallililly1973

Fishlore Legend
Member
Messages
10,441
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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