12/12 from seed, some heat down south.

[GrüneErd]

Getting new space dialed in, running 12/12 from seed w/400w hps in a standard closet. A 340cfm panasonic whisper fan pulls from the top of a hood and exhausts through the door into the room where the air is cooled. Passive intake (was stanley blower, now passive, temps have lowered)

I am running 2 DP Hollands Hope. 2 Fem Seeds ZamalxSkunk Special, 4 local bagseed I obtained in Lahaina, Maui, Hawaii, and preparing 2 Sensi Mexican Sativa and 2 Thai HazexSkunk freebie. Planting times staggered. Not my first grow, just in this particular space.

The HH is the oldest, at 16 days 12/12 from seed, and is drastically small for this growing technique (so I've read, first time trying it). Has yellowing cotyledons and only second set of leaves (pics soon if needed) which are lighter green and no longer perky. For about one photoperiod last week the space experienced 93+ degree fahrenheit temps, and until last night temps averaged 90-91 lights on, 85 lights off (way hot, i know) changed to passive intake, temps now run at 85-88 during lights, around 80-83 lights off w/small fan blowing plants at all times.

**Could that prior heat have given them heat stress, stunting their growth? If so, why are the younger sprouts normal green while the older are lightening?

The next oldest, a maui bagseed and zamal, are slowly doing the same, the youngest are healthy, though a tad small.

I'm using organic potting soil with a good amount of perlite (wish i had vermiculite, always have in the past) and distilled water only at this point, ph around 6.3, watered every day/other due to heat.

**Could they possibly be overwatered? First time i've done that, feels nooby.

I checked the ph of the runoff and it's around 8.1-8.3 on the bigger ones (top dressed with a tiny amount of lime and dried blood today, comin up on old enough for first nute intake) and 8.4 on all the others, including the young ones, INCLUDING the leftover soil I had originally mixed up.

**Is this soil mix too hot? It sounds like it is, but why would it be?

Like I said, I've grown a few times before and never ran into these problems. New to me, and I knew the good ol' growers at ICmag would prob be able to help me as they are so good at doing

Sorry it's a lot, thanks in advance for anyone's help, I appreciate it SO MUCH!
-Grune

 

[Weedman Herb]

If they are just coming up on being old enough to feed why are you top dressing with Lime and Dried Blood ? Why are you top dressing at all? Lime is a Base and will raise your already high pH. Get that pH DOWN and get control of those temps. 85-88 is still too high. Both the pH and the heat are stressing your plants. If they aren't locked up now they will be soon. You need to read up some ...

 

[GrüneErd]

I don't know where you got your info to begin with but something doesn't seem right if you are the veteran grower you claim to be.

Lol man looks like the only one claiming I'm a veteran grower is YOU. I said I'd grown before, and obviously not enough to avoid making a mistake like the top dressing. I did not know, my mistake, my bad. Thanks for pointing out the issue but let's lose the attitude, i'm here to learn from you guys not be shown up, thanks.

I'm on a limited electricity budget with colder weather a month or so away, so this is as cool as it's gonna get until then (which was good enough last time, if it proves not to be this time, then i'll deal with it).

Thank you for your help weedman. Anyone with anything on why the runoff ph from the soil without the top dressing would be so high?

 

[Weedman Herb]

Sorry about being rude ... summers are rough around here and it's hard to shake the Kids off. Lime is used to bring your pH UP and dried blood is a fast acting source of N. It could burn the young uns. Both are better used as part of the soil mix IMHO. No clue as to why your soil/run off is pHing so high. Is your Organic Soil of a high quality or like wally worlds Sams Choice? Pictures might help.

 

[GrüneErd]

It's cool, i gotcha. Yeah i always add garden lime, d. blood, and bone meal to my soil mix once they are ready to transplant the first time, thought maybe an early def. so thats why i added to the top. I hear ya on burnin the little ones, i never feed my babes anything until three weeks, don't know why i thought changing that now would help.. I'm going to upload pics prob tomorrow (just got the cam back).

Soil is from Calloways Nursery (yeah, kinda wally world-ish, prob not organic but worked last grow), lists no ferts. The last half of the bag has been sitting untouched for about 2 months and became the soil for these little ones. Maybe that was a bad idea too...never let soil sit before.

I watered today, distilled only, gonna wait and see how things go. Ph was right on at 6.3, again, runoff 8.4. This is craziness, never had these problems so don't know how to adress them. Thanks again weedman for the help, and thanks to anyone else for their input. PICS TO COME.

 

[GrüneErd]

As promised, back with the pics. And once again came home to 90degree+ temps, I'm done with this light for now, tired of fryin the sprouts. They've been put outside (in Texas this late in the year, we're on a more-so flowering or 12/12 photoperiod outdoors right?) as the outside temps have dropped thanks to Gustav. Was like 85 high today with a breeze. Figure run em outside til the cold, then finish em up indoors under the 400hps. I'm in no rush, want what's best for them. Never grown outside, kinda interested. They look like they feel better out there.

BUT.
Back to the pics.
First is of the HH, which is at 17 days 12/12 from seed, and from what I've been reading RIDICULOUSLY STUNTED for that age. Startin to think more and more that it was temps..it was just misted in the flick.
**

**

This one is the ZamalxSkunk, at around 16 days, again, sheer disappointment..notice the yellowing coty's..
**

Then the Lahaina bagseed, at around 16 days, healthier than the others but starting to yellow.
**

And for comparison, at the same size as the above, a Lahaina at only 10 days, no yellowing. The younger one's all look healthier at around 10 days.
**

A shot of them all, tryin to get silhouettes so you can get an idea for size.
**

The way small ones in there are anywhere from 4-10 days younger than the bigger ones. Should be a HH and a Zamal that are tiny.

I'm really wanting to just get an all new, and for sure seedling friendly, soil tomorrow and just transplant them. They were watered this morning, I've transplanted this small once before, what do you guys think? And thanks in advance, again.
-Grune

 

[GrüneErd]

Woke up, went and bought new soil, began transplanting, and learned a lot.

First thing I learned, is that I believe for a fact that I've been overwatering them (agh and ive never done that). In cups that size I've always watered every three days/by weight, but with the high temps I over-compensated on purpose to try and keep them healthier. Bad idea.
When i transplanted I knew immediately that these littleone's roots have not been recieving proper airflow. Although, they have good root development.

So, they were transplanted into a brand new soil mix of 1 part potting soil, 1 part vermiculite and 1 part perlite. Very light airy soil. Didn't soak the new soil, transplanted em and lightly watered the top of the soil only. Put one germed Thai HazexSkunk into this new soil, will check it's growth as a control. All babes are now being grown outdoors for now.

Think this should fix a lot, will update in a day or two when I water next. Thanks guys.
-Grune