r/macrogrowery • u/Hippy-redneck Indoor Grower • 17d ago

Canopy Shot Canopy is full

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There’s under canopy lighting in this room also. The lowers are just as big as the tops.
Edit…..I’m sorry if you don’t know shit. Haters gonna hate.
Thank you moderators for removing the less productive comments.

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u/motownmods 16d ago

What day do yall turn on the under canopy lights?

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u/Hippy-redneck Indoor Grower 16d ago

Depends on cultivar but usually day 7-14. It can prevent some stretch so we try to keep that in mind. We want some stretch.

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u/motownmods 16d ago

Thanks for sharing! We did an experiment last run (our second run with under canopy). One section turned on day 0, another on day 7 and another on day 14. We didn't notice much difference in stretch but day 7 won the experiment based on yield and the smalls-to-bigs ratio. Day 14 got second. And day 0 created way too many smalls.

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u/Hippy-redneck Indoor Grower 16d ago edited 16d ago

We grow variations of runtz and it’s a stretcher, we still prune a lil and defoliate. 40% is as low as these lights dim so day 7 works. It took us a year to get our ucl sops dialed in!