Moonlight/light leaks

[JDU]

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[homegrown]

I really dont know JDU. I guess it depends on how much light is reflecting in. Maybe instead of adjusting your air vents, you could just add a foot of flex pipe to any leakers and just bend it in a 90 degree angle? should take care of the problem..

 

[Eliot Pryor]

I've read a lot about light leaks and I guess some people have had ill effects from them. I think light leak fears are way overblown. I presently have a photo-period and an auto going in two enclosures in my garage. I put the photo on 12/12 and the auto on 24 hrs. There are light leaks. The photo went into flower immediately when switched to 12/12. Its still really dark but certainly not total blackout. My experience. Have a great grow !!

 

[Rwise]

"Moon light" or other naturally occurring light is not considered bad as I have read, and the outside girls get full moon at times all summer/fall. It's the artificial light thats the problem,, I had a single red lamp on a single surge strip that caused fox tailing near it,,, now covered,, doh!

 

[Tersky]

I have had light leaks the size of a pinhole reveg my plants. The fears are real as it adds at least a month to the photo grows. I close my vents at night (girls night time) and drape a sheet over the top to cover zippers. I also use a green light in the room instead of a normal white light. For the back vent that i always leave open, i cover it with cardboard and lean at an angle so to block light but not be right up against it blocking air flow. I also have cut carbon filters to fit over the back window to block light from coming in and to filter the air coming in (dog hair and dog dander) https://www.amazon.com/gp/product/B00T4XUKKE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1. You dont HAVE to open the vents unless you have ventilation, heat or humidity issues but i do during the day to get more ventilation while the lights are on. I would recommend covering them when the lights are off as i'd rather be safe than sorry. I have had a plant re-veg and it sucks. Id doesnt kill the plant but you have to re-flower and the plants stretch even more and with height limitations it can ruin a grow.

As far as moonlight goes, i wouldnt worry about it. It's the direct light you have to worry about and moonlight is just sunlight reflected off the moon (indirect lighting).

 

[BlueberryGIrl]

Moonlight is natural. Forced growing feminized plants under artificial light is not. There are no variations-ideally-as in when the sun rises and when the sun sets. The plants are on a set cycle. So any light leak, from any source, is not desired.
I had the same idea or notion in regards to my little light leak from outside and well, after totally sealing off any light from any source...my grow greatly improved.