Sulfer Def. Good pics.

[Kushy]

How long has this problem been going on? 3 days
What STRAIN are you growing? aPollo 11
What was the establishing technique? (seed or clone?) Seed
What is the age of your plants? 2-3 weeks veg
How long have they been in the soil mixture they are in now? Foxfarm Ocean forest with added perlite
How Tall are the plants? 1'
What PHASE (seedling, vegetative or flower) are the plants in?Veg
What Technique are you using? (SOG, SCROG etc) N/a
What size pots are you using? (Include how many subjects to pot)3 gal
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)50%FFOF, 50%chunky perlite
What Nutrient's are you using? Age old grow
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* 1/2 srtength every other watering
How often are you feeding? water every other day, fert every other day or water
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
What is the TDS/EC/PPM of your nutrients used? n/a
What is the pH of the "RUN-OFF"? n/a
What method of pH test was administered? Using Strips? pH pen?n/a
How often are you watering? every other day
When was your last feeding and how often are you feeding? Today
What size bulb are you using? 1000w MH
What is the distance to the canopy? 30 inch
What is your RH Factor? (Relative Humidity) n/a
What is the canopy temperature? 78 F
What is the Day/Night Temp? (Include fluctuation range) 68F
What is the current Air Flow? (cfm etc.) 365 cfm fan from out side
Tell us about your ventilation, intake exhaust and when its running and not running ? Vrnting the light out bringing in fresh air, oscilatring fan
Is the fan blowing directly at plants?no back and forth
Is the grow substrate constantly wet or moist? no
Is your water HARD or SOFT? soft
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? RO
Are you using water from a water softener? no
Has plant been recently pruned, cloned or pinched? no
Have any pest chemicals been used? If so what and when?no
Are plant's infected with pest's? a spider^^ scarred me this morning

[/IMG][/IMG]

 

[Weedninja]

Is this a question or are you just showing people what it looks like? If it's a question, the answer is epsom salts or sulfured molasses.

 

[10k]

dittos

and nice pictures btw

 

[JeffSpicoli]

could it be offgassing too?? Looks like its in a hydro-tent deal based on the white lining???

 

[Kushy]

No its my second crop in this area. Its not a hydro tent its a little room with white lining. Thanks for the help. I figured it was Sulfer but not 100%.

 

[HeadyPete]

The bigger question is why?

My answer is too low PH.

FF is acidic, Age Old is acidic, and you aren't testing PH. Also, no tap water with cal and mag to raise and buffer ph. I'll bet if you test the runoff it's low.

 

[stAx]

foliar epsoms, its Cal i bet my hat on it. off yellow new growth always cal in my case. now why did it lock out? is the question. getting to the root of the problem like HP is saying is always best. and yup CAl will/does lock out with a low PH. cheers and g/l

 

[HeadyPete]

stAx good info except that epsom salts will do nothing to correct a cal problem as Epsom is comprised of magnesium and sulphur.

Another possibility is too much nutes. My plants will yellow up like that if I overfeed, before the major burning starts, especially with salts like magnesium or any salt based nute like GH (I did burn mine with an incorrect dose of epsom due to my laziness....) Some plain water flushing and/or reduce nute dose and they will green right back up

 

[JeffSpicoli]

ya i fucked up my shit by giving it epsom salts + calmag... What looked like a sulphur def. ended up being sulphur toxicity