• Here is a link to the full explanation: https://rollitup.org/t/welcome-back-did-you-try-turning-it-off-and-on-again.1104810/

Ive read read read and still need help, leaf problems with pics

T

tooslow92

Member
Thanks for checking out my post. Before I ask the question that has been asked 1000 times on here let me say I have spent more time reading on here than in my grow room this past week. I have spent days reading many many posts on here relating to my problem and I have come up with the following:

Possible heat
Possible Nute burn
or maybe a def

These leaves are from the very bottom of the plant and the tips were starting to turn a bronze color towards the end of veg and the tip started to curl up, so I used final flush ran final flush for 3 hours before moving into them into new water and nutes in the flowering room. I let the plants sit in complete darkness for 24 hours and then started 12/12. This is day two of flowering and now the tips are a little worse and they are crunchy

Here is what I am running 1st week into flowering after 4 weeks of veg

(hydro) ebb and flow system 1/2 hour flood (feed) 1 hour drain with a 55 gallon res.

8 1000 watt lights 24 inches from the plants with 4 plants under each light

temp at plant tops 76-79
(night time temps about 60)

Humidity about 40%

PH is around 6.2

Im running foxfarm organic nutes on week 5 schedule in 50 gallons of RO water
2 tsp pr/gal for 100 tsp of Tiger Bloom
1 tsp pr/gal for 50 tsp Big Bloom
1/4 tsp pr/gal for 12 tsp open sesame

I just realized while typing this that week 5 schedule calls for 1 tbl per gallon and I only added 1 tsp per gallon, which means I onlt added 1/3 of what it calls for in Big Bloom. Could this be the problem? I thought I might have over fertilized but is it possible that this leaf issue is an under fert issue?

I hope I have covered all the specifics; can someone help me narrow this down? These leaves are from the bottom of the plant
Much respect

 

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deflator

deflator

Active Member
First two pictures are straight up P deficiency. Dark green to bluish foliage with greyed and burnt margins.

Other two pictures are also most likely P deficiency.

What are the NPK ratios and ppms being fed to these plants?
 
B

burnbig420

Active Member
tooslow92 said:
Thanks for checking out my post. Before I ask the question that has been asked 1000 times on here let me say I have spent more time reading on here than in my grow room this past week. I have spent days reading many many posts on here relating to my problem and I have come up with the following:

Possible heat
Possible Nute burn
or maybe a def

These leaves are from the very bottom of the plant and the tips were starting to turn a bronze color towards the end of veg and the tip started to curl up, so I used final flush ran final flush for 3 hours before moving into them into new water and nutes in the flowering room. I let the plants sit in complete darkness for 24 hours and then started 12/12. This is day two of flowering and now the tips are a little worse and they are crunchy

Here is what I am running 1st week into flowering after 4 weeks of veg

(hydro) ebb and flow system 1/2 hour flood (feed) 1 hour drain with a 55 gallon res.

8 1000 watt lights 24 inches from the plants with 4 plants under each light

temp at plant tops 76-79
(night time temps about 60)

Humidity about 40%

PH is around 6.2

Im running foxfarm organic nutes on week 5 schedule in 50 gallons of RO water
2 tsp pr/gal for 100 tsp of Tiger Bloom
1 tsp pr/gal for 50 tsp Big Bloom
1/4 tsp pr/gal for 12 tsp open sesame

I just realized while typing this that week 5 schedule calls for 1 tbl per gallon and I only added 1 tsp per gallon, which means I onlt added 1/3 of what it calls for in Big Bloom. Could this be the problem? I thought I might have over fertilized but is it possible that this leaf issue is an under fert issue?

I hope I have covered all the specifics; can someone help me narrow this down? These leaves are from the bottom of the plant
Much respect
Click to expand...
hey man you can put way more that 4 plants under a 1000 watt. light..if u wanted to save a lil on electricity you could reduce amount of light significantly if you want 4 plants under each light 400 watt. would be more than fine.
 
T

tooslow92

Member
Thanks for the prompt attention, here is what I have to answer your NPK questions
Tiger Bloom® Liquid Plant Food (2-8-4)
Big Bloom™ Liquid Plant Food (0.01-0.3-0.7)
Open Sesame® Soluble Fertilizer (5-45-19)

Is this what you are looking for?

As for the PPM, its only at between 600 and 700.

Any suggestions will be greatly appreciated.

Much respect
 
Jonus

Jonus

Well-Known Member
It looks to me like over feeding. Now I am no expert at flood and drain, and 600ppm sounds fine to me, so I would assume that it is the length of flooding that may be the cause of this. Maybe you could try shortening the flood time to say quarter of an hour in order to deliver a little less nutrient to the plants. By the way, what growing medium are your plants in? and how many times a day are you flooding?
 
cowboylogic

cowboylogic

Well-Known Member
deflator said:
First two pictures are straight up P deficiency. Dark green to bluish foliage with greyed and burnt margins.

Huh? Straight up nute overdose. Plus you are flooding to much. 1/2 hr on then an hr off, thats alot. You should only have to flood 3 times or so during lights on.
Click to expand...
 
T

tooslow92

Member
Again thank you for the prompt attention.
I am using naked clones in hydroton with a 4 week veg time. My feeding schedule is as follows,
1/2 hour flood 1 hour drain 24 hours a day so they are getting fed 16X a day (clearly a problem) So here is what I will change (PLEASE corrrect me if this is still incorrect) I will only feed them 4X during the lights on phase (7, 11, 3, 7) and once in the middle of the lights out phase (3) (just to keep the roots moist during lights out) at 15 minute intervals. So in total they will be fed 5X a day for a total of 1 hour and 15 minutes

I also forgot to mention that I am also using CO2 injection with a constant 1500 ppm lights on and no injection with lights off. Im not sure this makes a different but in the interest of giving as much information as possible, I wanted to update.

I cannot express enough gratitude for the help I have recieved on this site thus for and wanted to extend a thank you to those of you that are taking time out of your day to help me get this situated.

Thank you and much respect
 
deflator

deflator

Active Member
cowboylogic said:
Huh? Straight up nute overdose. Plus you are flooding to much. 1/2 hr on then an hr off, thats alot. You should only have to flood 3 times or so during lights on.
Click to expand...
Yeah, I missed the amount of daily feeding part. The super dark green foliage must be from N overdose then
 
T

tooslow92

Member
Ok, so after slowing the feeding to 5 times a day 4 hours in between 7, 11, 3, 7 with lights on and , and 1 time in the middle of lights off, and this is what my leafs look like now, whole new problem. My PH has been adjusted to 5.5 and my ppm IS ABOUT 800. I have again read and read and cannot pinpoint the problem. Any suggestions would be a great starting point and greatly appreciated.

much respect
 

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