Combination of problems or just severe nute burn?

[FarmerTed]

SOIL:
What STRAIN are you growing? northern lights #5
What was the establishing technique? (seed or clone?) seed
What is the age of your plants? 2 weeks
How Tall are the plants? 4-5 inchs
What PHASE (seedling, vegetative or flower) are the plants in? veg
What Technique are you using? (SOG, SCROG etc) sog
What size pots are you using? (Include how many subjects to pot) 1 per 1/gal
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) mg w/ time release fert
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful* not yet/see below
What is the TDS/EC/PPM of your nutrients used? na
What is the pH of the "RUN-OFF"? na
What method of pH test was administered? Using Strips? pH pen? na
How often are you watering? not yet/see below
When was your last feeding and how often are you feeding? not yet/see below
What size bulb are you using? 3-23watt cfl covering 1x2 area
What is the distance to the canopy? 1 in
What is your RH Factor? (Relative Humidity) around 40% (just a guess)
What is the canopy temperature? not sure no thermometer in veg room
What is the Day/Night Temp? (Include fluctuation range) room temp 65
What is the current Air Flow? (cfm etc.) none
Is the fan blowing directly at plants? na
Is the grow substrate constantly wet or moist? moist
Is your water HARD or SOFT? hard i believe
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? tap
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? not that im aware of

Was looking alittle yellow so i watered with 1/2 strength mg thinking it was nute deficient. It may have already been nute burn/heat stress, in which case i just made it worse?
Kept getting url error message so see pics in my gallery
(feel free to comment on problems with other plants in my gallery)
Help with posting pics would be appreciated
Thanks for the help

 

[stinkyattic]

The problem there lies in your choice of soil for that life stage.

Cannabis seedlings are quite sensitive to nutrient burn and the MG soil line is too chemically 'hot' for them. It's not the greatest later in life either, since it makes your job of feeding much more difficult.
For now though you need to pick up a liquid pH test kit at least (more accurate than the soil meter probe types and cheaper than a proper meter).
You'll be flushing your soil.
Start by testing your tap water and checking the pH.
Pour this water through the pot and record the pH coming out.
From these two numbers you should be able to tell what your actual soil pH is.
Adjust your flushing solution to bring the soil pH into the range of 6.5-6.8. So if the runoff is 6.0 you should flush with about 7.2-7.5, but be careful going any higher.
Keep checking runoff until you see that you are where you need to be, then give a VERY VERY weak feeding with a cannabis-specific grow fert. Mix it at about 1/4 of the strength the bottle recommends and adjust the pH of the feeding solution to 6.8. I suggest the high end because the MG soil is peat based and will tend to drop over time.

You also absolutely NEED air flow/ventilation of some sort.

 

[KABBAGE]

Stinky pretty much said it all..... You need to know your PH. Plants that are 2 weeks into veg require next to nothing for nutes. All I feed at that stage would be some b1 (SuperThrive, ThriveAlive or like products) and possibly an enzyme product (Hygrozyme, sensizyme).
Another thing ill mention is those pots are rather small. If you are going to flip to 12/12 soon then keep em. But if you are going to veg for a while, Id suggest x-planting them into larger pots - bigger the pots, the bigger the plant, bigger the plant, better yield you will see.

 

[Weedhound]

She's .....EVERYWHERE!!

 

[MynameStitch]

Yup, shes one kick ass chica!

 

[HeadyPete]

I agree.

 

[FarmerTed]

thankyou for the replys.
have a small fan going now, will do the flush tomorrow.
the reason for the small containers, i was going to try to flower clones at about 6 inches in a sog & get a perpetual harvest of several strains going.
i may end up going w/ larger containers & fewer plants like you mention, not sure yet?
again thanks for the help.

 

[MynameStitch]

You have a much better yield when plants are in there proper size pots, 12 in tall plants per 1 gallon size pots minimum.

1 foot per gallon minimum.
Sometimes depending on the strain, they won't finish properly or sometimes not at all until they have a bigger pot to grow in, flowering plants grow biggest root growth in the first 2 weeks of flowering and slow down a lot, but still grow roots throughout flowering.

 

[MynameStitch]

Switch to Promix BX & you won't need to PH nothing.

Why are people feeding their seedlings!!!

Promix & grow like a Pro.

Wth!!, Stop the BS.WHY are you telling everyone that you won't have to worry about your pH with promix, this is so not true; You are going around to threads and posting that you won't have to worry about pH with promix. With ANY medium you use you HAVE to worry about pH adjusting, unless you mix soil with lime and ensure your nutrients you use are not going to be excess and not overwatering with acidic water.

So I don't know what your smoking, but you have to worry about pH with any growing medium you use, thats a strong fact, not everyone can use a soiless mixture, and you can grow good pot with or without promix.

 

[HeadyPete]

Use Pure Blend on that promix and see how fast you are reaching for the ph up!

Here here Stitch!

If it works for you, great, but you got lucky, it's not just "use this and don't worry"....it's luck, pure and simple.

If you use Promix and you are lucky enough that your water is naturally perfect ph and your nutes happen to be balanced perfect then yes everything is good, but when that lime wears out or the nute buildup cause ph crash you will be here asking what to do to fix your plants.

I grow great pot in coco, BioBix premix dry, worm casting and kelp, not a touch of peat or perlite anywhere.

The problem with small pots is all the watering constantly...larger pots hold more water and nutes and last longer between drying out. Plants don't like big swings up and down with moisture or ph. Also SOG is just a ton of work for nothing.....2 plants in two large pots, LST'd and a month or so apart will give you harvest to last you forever. When one plant is done, move another in...your stash will last till the new one is done. Plus you can water and leave for 4-6 days, not water 4 " pots every day.

I got 11 oz off my ONE LST'd LUI under 600 watts, that's over 300 grams and that's up there with the 1 gr per watt benchmark. I had 2 plants in another bin and they were a little short of 11oz, but if I had stuck to one plant per pot, I would have hit 11 oz on the other.

Total, 2 pots (1 - 5 gallon, 1 larger rubbermaid bin) - 21 oz for 3 LUI plants.

 

[stinkyattic]

Promix is all good in specific situations.
Try leaving a plant in it for as long as many nOObs leave their plants in the same pot and see how healthy it looks... HINT: You might wanna run out and get a pH tester at that point, lol!
What are you, a rep of the company or something? Go with what works and don't be coming on here spamming how great the shit is. You don't see aero growers coming into the soil forums telling the dirt folks how their lifestyle is WRONG. It's just silly!
And lastly, Stitch devotes such an enormous amount of time and effort to this site that she does NOT need trolls coming on to nitpick. With 2700 posts and you've found a couple pieces of wrong advice, take your <0.1% average and get lost. It's statistically insignificant.

 

[KABBAGE]

So if I use ProMix and feed nutes with a PH of 12, the ProMix is going to correct that? I think not.
Sorry for getting off topic but I have to sound off when someone jeopardizes others crops.
PS - I prefer Sunshine Mix #4 anyday over ProMix

 

[MynameStitch]

Sorry about getting so angry, but damn man, he was posting in like 5 different threads about this promix thing like he was trying to sell a product or something lol.

THat was why I got so angry.

Thanks stinky much :hugs:

DAmn petey, that was a good damn yield dude!!! That is a very good point, with that much unless you are a heavy smoker and smoke 8-11 oz's in 6 weeks time you are set with 4 plants, 1 in flower 1 in veg and 2 clones to keep a rotation.

Crazy man, thats a damn good yield, very efficact grow!!!

Ya see, everyone grows something different, now the guy has made a thread about it. It's going to get moved since it's not in the right forum probably.