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Offlinefaslimy
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Registered: 04/04/04
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Light regime for peruvianus seedlings
    #2860161 - 07/06/04 07:54 AM (18 years, 6 months ago)

Hi all,

I've got 50 trichocereus peruvianus seedlings germinating. After about 5-6 days 3 had popped up so I stuck them in my growroom cabinet which has a 400W HPS bulb (it grows great mull :wink:)

my question: should I run them at 12/12? or take advantage of the indoor light and crank up the daytime lengths? I don't wanna confuse them because they won't be staying in there forever.


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OfflineHooty
Reality isRelative

Registered: 02/24/03
Posts: 2,467
Last seen: 11 years, 8 months
Re: Light regime for peruvianus seedlings [Re: faslimy]
    #2860205 - 07/06/04 08:11 AM (18 years, 6 months ago)

400w hps might be a little excessive for seedlings, you may end up sunburning them, I'm not expert though so I'd wait for a second opinion.


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Offlinefaslimy
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Re: Light regime for peruvianus seedlings [Re: Hooty]
    #2860340 - 07/06/04 09:06 AM (18 years, 6 months ago)

Yeah I figured that, I'm being extra careful with the misting, when I get some time I will get a shadecloth. They're still in the humidity dome which should shield them slightly, they are very light green and cute, some still have the pod attatched to their tips.


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OfflineOpenminded
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Registered: 08/28/03
Posts: 657
Loc: England.
Last seen: 5 years, 29 days
Re: Light regime for peruvianus seedlings [Re: faslimy]
    #2860689 - 07/06/04 12:56 PM (18 years, 6 months ago)

My cacti seedlings (all my plants, actually) are on a 16/8 cycle, and are doing just fine... Total light = 150W flouro, they could take more, but they're OK.
But I don't plan on moving them anywhere, I'm not sure how much a sudden change in light cycle will shock them, but I don't think it would be very serious. Not as serious as 400W HPS burn!


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