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100 w CFL vs 400w MH

It looks like I am just about see some activity from the seeds I put in the plugs. Would they grow much faster if I use the 400w metal halide light compared to the 100 w (or less) CFL I am using now, or is the difference at this stage more marginal?

 

 

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Replies (14)
    • seedling are temperamental but i think you would be fine either way   but i prefer my t5. 400w is a lot on seedlings just keep it up higher, gl make sure they are warm also to help grow. 

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      • Ok, I guess I will leave as it is for now then. I think the temperautre is ok, the T5/CFL gives off some warmth. Humidity was low though, 30% I think. Is that important? I have a humidifier somewhere if needed. 

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        • What you are doing seems to be working right now so I would let the seeds sprout and the leaves open before increasing the light. If they seem happy let them keep doing what they are doing. Imo

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          • Solid advice Tex, from Spider too! I will leave them as they are, for now. 

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            • is it to wet?

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              • Peat without perlite or something similar can & will hold more water than needed.

                I wouldn’t water them for a good wile & id get a fan blowing in the area there in but not directly at them. You could have them end up damping off if you get fusarium wilt.

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              • is it to wet?

                Good question! I have the tray tilted so that the excess water run off to the bottom. and I lift it 3-4 times a day to water them. Could still be to wet, I dont know. Picture was taken right after watering.

                 

                Kind like an ebb and flow? 

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                • temps at 26c they will fly and maybe some perlight in your box :)

                   

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                  • and man this f plants don t like water so mouch 

                     

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                    • and man this f plants don t like water so mouch 

                       

                      Ok, I will keep them drier! Thanks for the advice! 

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                    • but im noob :)

                       

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                      • but im noob :)

                         

                        Sure, but the big growers are all stoned.

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                      • geta sprayer thn just mist 

                         

                         

                         

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                        • For seedlings, I would stick with the CFL's. But 100 watts are a little too weak Imo I would go for the 150 watts. Good luck

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