Yellow to Brown spots on bottom leaves 1mo. PICS

Hello can Anyone help me identify what this problem may be, 1month old. Soil-less(peat moss/perlite/vermiculite) mix. 4x2600 lumen CFL. 3" to 4" away. I'm using R.O. machine water with PH-6.5 and 20-20-20 nutrient mix with macro-nutrient included. My soil ph is also good around 6.0-6.5 most feedings.

Thanks a bunch!



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keep it real.

Well-Known Member
What do you mean by soilless mix perlite and vermiculite? If so you need a high quility nute for passive hydro and a proper ppm and ph meter
 

somebody1701

Well-Known Member
Keep It Real is right -- you need some decent nutes for soilless. Your also going to need some calmag supplementation with RO water.
 
looks like some minor burn, the nutes your using look really heavy for a young plant...maybe cut the dose in half
Ok so I rinsed them, should this yellowness go away or are these leaves dead now? should I be using 1/4 or 1/2 strength with them this short? How tall do they need to be to use full strength? Is 20-20-20 the right or something else? I heard I may need cal/mag supplement when I am using soil-less... is that what this could look like? They seem to be growing really slowly too.. do they look short for a month old?
Thanks!
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~Dankster~420

Well-Known Member
H
Ok so I rinsed them, should this yellowness go away or are these leaves dead now? should I be using 1/4 or 1/2 strength with them this short? How tall do they need to be to use full strength? Is 20-20-20 the right or something else? I heard I may need cal/mag supplement when I am using soil-less... is that what this could look like? They seem to be growing really slowly too.. do they look short for a month old?
Thanks!
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Oh yeah! 4 a month old there really small! What type of light do you have those babies
Under? Also, you really need to replant them asap! Rule of thumb, "the bigger the plantter"
"The bigger your plant". ;) and dial it back on th ose 20-20-20 nutes there buddy..
Personally I wouldn't be using that type of nutrients on those little guys. Maybe
Something like 6-4-4 or around that.. and some cal-mag will work 4 them..
Hope that helps.. if you need anymore help, just ask. Anyone would be glad to
Help you.. happy 420. Later.
 
H


Oh yeah! 4 a month old there really small! What type of light do you have those babies
Under? Also, you really need to replant them asap! Rule of thumb, "the bigger the plantter"
"The bigger your plant". ;) and dial it back on th ose 20-20-20 nutes there buddy..
Personally I wouldn't be using that type of nutrients on those little guys. Maybe
Something like 6-4-4 or around that.. and some cal-mag will work 4 them..
Hope that helps.. if you need anymore help, just ask. Anyone would be glad to
Help you.. happy 420. Later.
4x2600 lumen cfls "DAYLIGHT"
That should be enough for a 2.5'x3' room right?
Thanks!
 

Ragoo

Member
I don't think that is enough Lumens bro check this out it helped me a lot. greenmanspage.com/guides/lighting.html
gl
 
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