Seedlings curling Down... why?

[Navigator330]

Hello everyone..... Im starting a new grow here, using my new rubbermaid style grow box. My seedlings OG KUSH and hashberry are curling down some. like folding under.... as you can see. I want to save them because, of course.... ITs OG KUSH! I have 12 of each but the seeds are priceless, dating back to 91' phenos!
No ferts yet, no supplements, only R/O Distilled water!

SOIL:
What STRAIN are you growing OG KUSH/HASHBERRY
What was the establishing technique? SEED
What is the age of your plants 10 DAYS
How Tall are the plants 1''

What size pots are you using? (Include how many subjects to pot) 16 oz solo cups
What substrate/medium are you using? What brand of soil mixture are you using? B'Cuzz Coco and perlite 50/50
NO NUTES to young

What is the pH of the "RUN-OFF"? 5.7
What method of pH test was administered? Using Strips
Water when needed

What size bulb are you using 6x23 watt CFL Daylight/cool mixed
What is the distance to the canopy 3-4 inches
What is your RH Factor? 60%
What is the canopy temperature? 77
What is the Day/Night Temp? 77day 64 night
What is the current Air Flow? 120mm PC fan
Is the fan blowing directly at plants? NO
Is the grow substrate constantly wet or moist? NO

What water are you using? Reverse Osmosis
Has plant been recently pruned, cloned or pinched? NO
Have any pest chemicals been used? If so what and when?
Are plant's infected with pest's? NO

 

[DIGITALHIPPY]

seams like you need to give them some nutes yet..??
id keep the ppm's at less then 500 if you can.

ca, mg, iron,
some light n-p-k, preferably a tea.

do you have drainage holes? ill assume yes, whats up with the perlite its it mixed throughout like that?

the purpleing/dark color is telling me its p-k.... ive never grown coco, but i remember reading about coco holding p down....
try a foliar with some seaweed if you have any and/or B vitmins if u have any.

these OG's seam to enjoy TEA's alot. and heavy feeding.i rarly burn them.

 

[Navigator330]

I have never seen anything like this before..... the nodes are literally stacking up and the leaves are just folded. If it was heat they would stretch because of it. 4 inches inst too close for CFL's.

They are in rockwool cubes and then the coco/perlite. Should i try another medium next time?

HELP! I cant lose these bitches~!

 

[MynameStitch]

Temps are too cold, bring night temps up, seedlings need a little warmer temp and hate cold night time temps.

Bring up the temp around 72F to the lowest and do not let it exceed 80F
The purpling is from the phosphorus being locked out due to cooler temps. Nutrients have different absorbtion pH levels and each have there own when coming to cooler temps, phosphorus is the worst and easiest to get locked out due to cooler temps.

 

[Navigator330]

does this account for why the nodes are stacking up sooo tightly???

 

[MynameStitch]

that can be caused by a number of things, but I have seen many seedlings be short squat from cooler temps.

Strain also has a lot to do with it, but you won't know which caused it until you get them warmer temps.

Your lighting can cause it too,

 

[sativo]

I have one that did that exact same thing but then straightened out, it purpled a bit too. One thing you can do is begin to mist them and put some water on the leaves, that will make them droop but when they come up again they'll be a bit straighter.

 

[Navigator330]

SAFE......! they seems to be coming back around!! Temps a constant 75 to 79 thanks!