leaves drying from too much air flow?

[BlueberryNutz]

got a slight problem. i have a can fan that has 6" inch ducting, im not sure how much cfm but it sucks pretty good. in this case its sucking too good though lol. the seedlings seem to be getting dryed out from a vent near the bottom of the cab. is there anything i can do? i cut out an extra vent near the top so there is not as much air flow coming through the bottom near the plants. im doing a 12/12 from 3 weeks in from seed. they have been under 24 hours of ventilation and light for the first 3 weeks but i am now switching to 12/12 due to time constraints. i just transplanted them into coco coir tonight. i raised them up away from the vent. they are now pretty close to the light but i think they will stay cool enough because of the cool tube.

how close can i have these without giving them light burn? the arent very big at all yet.

any suggestions? or have i done pretty much all i can do?

 

[BlueberryNutz]

heres a pic of them from today.

this is my first run in coco. i soaked and drained it and added a tiny amount of pbp and cal mag. i hope everything recovers alright

 

[BlueberryNutz]

it makes me sad seeing my little children all shriveled up lol

 

[BlueberryNutz]

anyone?

 

[G.O. Joe]

Well what has been your temperature and humidity? Get something to measure both if you don't know. Seedlings and clones under fluoros with reasonable temperatures don't need much ventilation, just circulation to strengthen the stems and prevent some mold problems. They like high humidity.

Under hot bright lights, your plants will be much happier with a humidifier unless it is humid indoors where you are right now.

 

[MynameStitch]

that looks more like your mixture you have is making them crispy, the only time I ever seen air dry out something and make it shrivel is if it was drying the medium out or the fan was so strong it was whipping the leaves around causing other leaves to become affected.

Those seedlings look more like they were put into a mixture too strong for them.

Before you put them into coco what mixture did you have them in? Did you feed them anything yet?

WHat wattage is that hps and what wattage is your fluros you got now?
Can you take a better picture of them closer up?

 

[mexilandrace]

way too much nutes for such little kids

 

[BlueberryNutz]

there was no nutes added. i think that the hydroton had something lingering from a previous grow. that could be my ony guess. humidity varies but it tends to be on the low side because of all the ventilation. i dunno whats going to happen to them. if they die, then so be it. lesson learned. use brand new media when working with seedlings lol. its all good. im not gonna cry over a few seedlings. this just means i get to order new genetics

 

[BlueberryNutz]

they dont seem to be getting any worse now. hopefully i will get a couple to pull through. there are a few that seem to be ok. mostly the mazar i sharif. the top 44 seemed to be the worst off.

 

[mexilandrace]

dude, didn't you say you added a tiny amount of cal-mag and PBP? then how can there be no nutes added?

 

[Weedman Herb]

i soaked and drained it and added a tiny amount of pbp and cal mag.

Like mexi said ... and ... if this is supposed to be your first time in coco why are the seedlings in rooters nesting in a bed of hydroton? Where's the coco?

 

[MynameStitch]

wow this is the most confusing thread I ever been apart of!

 

[BlueberryNutz]

here is exactly what happened-

i started seeds in coco plugs and nestled them in hydroton in a seedling tray. there was a little bit of water in the bottom of the tray with airstones in the bottom. at this point there was absolutely no nutes added. thats what i was referring to. the problem started before the transplant to coco.

i was read in the coco for beginners thread that you have to add a tiny amount of nutes to the coco since it has little nutritional value for the plants thats why i added a couple drops of pbp and cal mag to 1 gallon of water to hydrate the coco coir. they werent reacting to what i did. they were reacting to the leftover nutes in the hydroton.

there are a couple that are looking alright at the moment but only time will tell. even if they pull through, they will most likely be stunted from the stress.

i hope this clears everything up lol

 

[MynameStitch]

WHat is the pH of your mixture you have them in now and is there any nutes in there now?

Did you wash your hydroton really good before reusing it?

 

[tree&leaf]

Growing in coco is tricky even for experienced growers, you have to treat it as a 'soiless mix' as in hydro, because coco itself contains no nutrients. it also retains more moisture than soil, so hand watering becomes important.

If you're growing in a soiless mix, then you're growing hydroponically - which means you need to control the ph and ec of the water/nutrient feed. Putting your coco plugs on hydrotons probably made the ph too alkaline.

Do those cups you now have them in have drainage holes? Because if they don't, you'll get even more problems.