Seeding With Yellowing Leaves and Brown Tips

bohicular

bohicular

Active Member
Hello everyone, I'll try to be as brief as possible

seeds: sativa from kindseeds
age: about 2 weeks
water: directly from a (good) filtered tap water source, it is ph neutral
light: one 100w high-spectrum CFL (I started them with a 55 watt and switched after their first true leaves grew out)
air: one 100mm cpu fan exhaust, passive intake. I have a beast of a fan for the real exhaust, but don't think its worth using now. The CFL is in a metal box that has intake and outtake fans, with a thin, clear acrylic cover. (I will add 2 more 100w cfls in there when they get a bit bigger). No interior circulation fans as of now, and no bug issues in my apt.
soil: 50-60% vermiculite and 40-50% pre-mixed topsoil, humus, vermiculite combo. I dont know the soil ph, I don't have a tester. (the almost dead plant is well over 50% vermiculite, but has a good amount of soil - I wanted to keep them light so they would sprout - all the soil i could find was really thick and heavy)

NO NUTES! :)

temps: holding steady at 79/80 degrees with lights on and 70 with lights off. One day they got up to the high 80's. I know 80 is not optimal, but I believe that its ok.
humidity: 37%-64% (right now it is 40% with lights on)
cycle: started at 24/0, then went to 20/4 over the course of 4-5 days. I'm switching to 21/3 starting tonight.

I am thinking that maybe its an issue with the water and ph? I really don't think I'm overwatering, although that may be possible - I'm waiting over 4 days between waterings.

I have 3 plants, one is pretty much dead, another has pretty bad browning tips and the other is droopy but not as bad with the brown tips (2 pics of this one).

I have searched a lot of posts similar to this one, and it seems to be a frequent problem thats hard to pinpoint. Hopefully all the info I gave now will help. THANKS!

(will start a thread on my completed super-cabinet soon. here are the plans from it, if youre interested: https://www.rollitup.org/grow-room-design-setup/373282-stealth-cab-design-opinions-needed-3.html#post4801129)

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bohicular

bohicular

Active Member
Should I really be feeding seedlings that are 2 weeks old? It seems impossible to not burn them to death
 
Respect The Herb

Respect The Herb

Member
after the second week you can start out with around 100 ppm for the first week or so and after that you can start upping the nutes, but make sure to do it slowly.
 
DrtyBngWtr

DrtyBngWtr

Active Member
max316420 said:
The plant is eating up any stored food and that's why the leaves are dying,,
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Told you what you need but not why! It does need fed but why? it needs fed because your using 50% vermiculite. also if your only watering every 4 days your either UNDER watering or your planters were to big to begin with. Seedlings dont need that much vermiculite. As for being thick and heavy any soil can be thinned down not to mention just not packing it in as tight... next batch go with less vermiculite... cut your nutes down to 1/4 ratio for beginning veg..
 
bohicular

bohicular

Active Member
DrtyBngWtr said:
Told you what you need but not why! It does need fed but why? it needs fed because your using 50% vermiculite. also if your only watering every 4 days your either UNDER watering or your planters were to big to begin with. Seedlings dont need that much vermiculite. As for being thick and heavy any soil can be thinned down not to mention just not packing it in as tight... next batch go with less vermiculite... cut your nutes down to 1/4 ratio for beginning veg..
Click to expand...
thanks

well, i try to pack in the soil not so tight, but when i water it, everything shrinks down and compacts super tight- i don't know how to avoid that other than adding a shit ton of vermiculite. They are due for a watering tonight, so i will put in just a bit of nutrients.
I live in a "developing" country and its impossible to get access to good stuff like fox farm, etc. All the medium that I've been able to buy just compacts like hell and looks like a fuggin turd pie.
 
DrtyBngWtr

DrtyBngWtr

Active Member
bohicular said:
thanks

well, i try to pack in the soil not so tight, but when i water it, everything shrinks down and compacts super tight- i don't know how to avoid that other than adding a shit ton of vermiculite. They are due for a watering tonight, so i will put in just a bit of nutrients.
I live in a "developing" country and its impossible to get access to good stuff like fox farm, etc. All the medium that I've been able to buy just compacts like hell and looks like a fuggin turd pie.
Click to expand...
Then while your looking around, look for a larger size of vermiculite. not the bag size but the chunk size. you will use less and it doesnt compact as easy.
 
max316420

max316420

Well-Known Member
whileilaydying said:
yea dude dont listen to the guy that says feed it..youll just kill it faster.
Click to expand...

REALLY???? Don't listen to me??? You'll just kill it faster?? Dude you don't know what and the fuck your talking about so when your gonna give WRONG advice then you mine as well not give it at all.. Anyone that can't see that plant needs to be fed is either blind or just fuckin retarded
 
Maine Buds

Maine Buds

Well-Known Member
don't want to jack a thread just want more info about everything.my plants also look this way( not so much brown) and i was told to flush because of burn. nutes were not to strong. I have a bit more yellowing starting from coytdelons to first set of leaves. does this mean that they were hungary and not over feed. I also have 50% vermiculite in my soil. and some of the new leave are very light colored.
 
*BUDS

*BUDS

Well-Known Member
Soil too rich , your burning the crap out of those babies. Also raise the light to 2 ft as they are stressed . When you stress young seedlings like this it sets them back for life. Maybe start again and try a light seed raising mix to start. Sounds like everything your doing else is right
 
F

FruityPebblez

Member
Im with buds, the lighting is probably too intense for the seedlings, id say to raise it one foot not two, you dont want long lanky plants.
 
bohicular

bohicular

Active Member
Great, thanks-- I had fed them, but extremely light, and it didn't seem to do more damage than already was taking place. I'll back off the lights a bit and start some new seeds
 
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