Problems with my first cfl grow

samuelbell · May 18, 2008

Hello evryone
Well this is my first cfl grow i have two big bulbs one 250watt blue and one 250watt red spectrum. My two plants are 2 weeks old and they seem to have stoped growing they are on a light cycle of 18 hours on 6 hours off. Also the some leafs have started to go dry and crispy can anyone help me out it would be most appreciated.

Happygrower · May 18, 2008

Is that light you are using dual spectrum or is it just one of the blue or red spectrums. I would suggest using a full spectrum of light throughout your grow. You might want to move the lights a little farther away from the plant. I am half way through with a cfl grow right now, and when mine were seedlings i had the light too close and had the same problem. Move the light a few inches up and you should be good. The burnt leaves probably wont heal but your new growth will be fine. Keep the pictures updated! What strain are they?

samuelbell · May 18, 2008

Hello
I am using one 250 watt blue light right now i will move the light up a few inches
Its just the amount of growth or lack of it that i am worried about

Wretched420 · May 18, 2008

that 250 watt is enough ligh for those plants get some air circulation...lower yellow leaves cna be caused by npk defect but its most likely your ph level let your water sit a couple days before watering..also dont feed them nutes every feeding dont want nute burn

samuelbell · May 18, 2008

The strain is afgani special kc brains

samuelbell · May 18, 2008

my water ph is 7.5

Joker52 · May 18, 2008

isn't bright white for flower and blue for veg?

samuelbell · May 18, 2008

warm white for flower

tryintogrow · May 18, 2008

how much was the 250 and where did you get it? online?

samuelbell · May 18, 2008

£35 online

daisy2687 · May 18, 2008

samuelbell said:
my water ph is 7.5

If you have any ph down or have some cash to get some you should be aiming for 6.5-6.8.

Your plant may not be getting enough nutes because the ph is high

Also I imagine a 250w flouro gets pretty hot so you might wanna back it off a couple inches. Or it may be fine where it is. Hold your hand over the plant and feel the warmth on the back of your hand. If it's hot move it up 2in or so

samuelbell · May 19, 2008

Hello

the light is now at 5'' and the air flow is spot on i just hope they start to grow lol
its very disappointing because they just will not grow each morning i look at them and they are just the same small.

samuelbell · May 19, 2008

do they look big for 2 to 3 weeks old?

samuelbell · May 20, 2008

Hello
It has now been two days and still no new growth i have a great air flow i have one intake fan one extractor fan and a normal fan blowing on the plants the temps are ok and humidity the light is on 18-6 OFF
i dont over water or under water i dont know what i am doing wrong

420inmyapt · May 20, 2008

Test your run off water and tell me what PH it is.... Daisy2687 even told you above you need to get your PH down. Plants can only use water with a PH between 6-7 6.5 being ideal. If you PH is 7.5 as you stated your plant is locked up, thus not growing and slowly starting to die. Also if you have nutes in your water your PH could be even higher *(I assumed you tested your water before you added nutes, a common mistake)*. Get some PH down, flush your babies with PH'd water and then see if you get any new growth.

samuelbell · May 20, 2008

Hello

Thank you this might solve my problem i will try to get my water to a ph of 6.5 i have been using 7.2 and 7.8 what a fool ;-(

420inmyapt · May 20, 2008

That would explain why your plants stop growing, did you test your run off? thats what your plant is drinking.... you should get that dialed in

samuelbell · May 20, 2008

yes the run off is at 6.8

tryintogrow · May 20, 2008

the soil looks pretty wet, but everything else look good man. 2 days isnt too long, and the roots might be growing and you just can see them...dont get too anxious yet. give them a couple more days i bet the start growing again.

samuelbell · May 20, 2008

Hello

Yes thanks man i just hope it was the ph that was stopping them if not i dont know what i will do i have wanted to do my own grow for so long and i finally got all the
things i need and it all went wrong
I will be back with and update and pics in a day or two
Thank you all for your help Wish me luck!

Problems with my first cfl grow

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