TOOOO much light ?

the trimmed few are survivors from a 118 deg. blast and dead leaves were blocking light to new growth.others were suppose to be second crop.all watering done with bottled spring water(my well water ph is bad and lots of iron urrr...). Foliar(misting) feedings and watering 1.5 to 2 oz. by spray bottle on stream setting 3 or 4 times a day light is now on 360w from 600w hps on super lumens(if u have adjustable lumatek u know what i am taliking about). for about 4 days now and i still have yellow leaves .pics of temp gauge set up first red cup pic is front and center then right to left . middle temp is the gauge pic

I can see the heat damage your recovering from, but chances are your not experiencing too much light, just heat. Keep it as close as you can while maintaining a lower temp.

The yellowing, my guess, looks like a N deficiency more than anything (is it FFOF by chance? i always struggle with N with my FF soil for some reason). But as to whether its your medium or or a lockout, i couldn't say for sure.

you cant really overdose them with light,not with a 600w anyway, i usually start seedlings under a 600w hps (full wattage)

a foot away.

could keep it closer , but dont want to upgrade my fans.

these need fed, are you misting 2-3 times a day? did I read that right? I rarely mist, does it rain out side 2-3 times a day?

the pic of the temp gauge is room temp(top) and the plants top temp(bottom) i have three temp gauges 4 if u count the mechanical temp/humidity gauges

if i turn the fan off temps get to 95 in about 7 mins and the light is a/c cooled 24/7

reason i think to much light is cause the little plant had fresh green leaves and after a week the top is just white and old leaves stay green where there is shade from top leaves thay are about 9 inches away from bulb in center

I just noticed what you are talking about in pic 11, my bad. That actually kind of does look like bleaching, but im not 100%, you so rarely actually see it. It really shouldn't be happening with a 600 so im kind of shocked. Also i just noticed on the lower leaves of those bleached seedlings, they are definitely showing a ca/ma deficiency (im pretty sure i see brown spotting on top of the yellowing?). Whats your soils pH? If the Mag def is from a pH lockout, the bleaching may or may not be being affected by it as well.

I would take that bulb and go about a foot at least. While in theory you really shouldn't be experiencing bleaching, as seedlings they also don't NEED that light as much either. Back it off a bit, let em get a node or two, then push it back up if you want. Ive also heard something about light spreaders? Not too sure about it, ill have to look into it.

sup wit the glass between the plants and the light?? looks like that 600w is to close to them small plants..make sure its at least 16 inches away from the plants

texastim420 said:

reason i think to much light is cause the little plant had fresh green leaves and after a week the top is just white and old leaves stay green where there is shade from top leaves thay are about 9 inches away from bulb in center

Click to expand...

well u said ur PH is bad so correct that and it might make a big difference..if the ph is off the plant isnt takin in everything it needs to

iam feeding with bottled water the ph in it is great.the glass is how iam getting my plants 8 inches from blub and staying 70-77 degrees.. before the glass when the a/c cycled the temps dropped 55 degrees then jump to the 90's before it cycles on again . i just broke the top glass(on wooden legs)cleaning it for the pics. it was cut to barely slide in and sat on pegs like the bottom glass. they are almost 2 months old transplanted from seed starters to cups and buried them pretty deep.. the light charts iam going by. at ten inches(measurement taken at top of cups) there getting 15 to 18,000 lumen's at 360w. 23,000 lumens at 400w. 42,000 lumen's at 600w and IDK how much light it puts out on super lumens.

hey how old are the plants in the pictures

the 2 sets of leaves are from two crops about 1/2 a month apart. the bigger leaves are from a plant that i cooked from the first crop. i have slots cut into the bottom of each cup so i can check to see it they are getting root-bound.started to feed 1/4 tablespoon per gallon thats 1/4 full strength of 18-18-21 plant food,but the bag says feed once every 7-14 days iam going to follow these instructions unless people can change my mind with some good info on feeding them more more often

those plants are way small for 2 months...maybe try a light feed.... also, i spray my plants daily with water until about week 6 flower to help keep the leaves clean so they can breath, that helps growth ALOT, some people dont understand that!

Your soil is too rich. I hav had a lot of those in the past. It wont grow. U can wait if u want. Best option just flush it a few times maybe u'll get lucky.

1st grow or what?? i think u said u have the light 10inches away from the plants right?? thats way to close for those babies..back it up to 16-22 inches..when i veg little babies like that i keep it about 16-20 inches away

As mentioned,..they're starving, for some reason, whether the light is exaggerating the problem, or not. If you want to save them for sure, transplant to bigger pots, to soil with perlite added(at least 10%. I use 20%+). It's possible that you got a bad batch of soil, it happened to me before, and took me forever to figure out what was wrong. In my case, the PH was really high.


You could also try flushing them with some 6.5 PH'ed water, to make sure the soil PH is okay. That's not a permanent fix, but'll keep things in check, long enough to give them a growth spurt, proving that it's the roots that aren't happy.lol Did you feed them anything yet? I noticed you said something about foliar-feeding, but didn't see any details.

yea my first time has sucked so far i have payed a full months electric bill and they were started by a friend all in 1 pot and give to me at about 3 days out of the dirt so shock has been bad,light shock has been bad.heat shock has been bad.i fert to soon (i read wait till the 3rd set of branches before feeding any fert, is this true?)just about everything has been bad except my electric with a extra a/c on 24/7 and the light only 50 more dollars a month,but i wiped out all but three of about 20 of my first crop cause of this.and the 2 crop has caught up to them... i smoke tooooo much to remember thing like how old they are i have no space limits so i didnt care about how many days old they are.so i been running plants on a 20/4 hrs at 360w for a few days now and the bleaching has stopped getting worst .about a week ago i tried misting with the tomato plant food at 1/4 strength instead of water while still feeding the stem just water stopped and went back to just water i want to doing this once a week same time as i fert the stem . i have a ph test kit with ph up,ph down and 1 or 2 times a week i check the runoff to see how its doing. the way i been feeding the stem is with a spray Bootle on stream and about 15 to 20 squirts(1.5-2 oz)per plant right at the base of the plant about every 6-8 hours . it keeps water run off down if i spray more then 25-30 times i have a puddle coming from each plant.could this be a problem

Your way overwatering man, my seedlings get like 100ml of water a day max. My guess is that their roots are drowning, doesnt look like any perlite in the soil either and it looks very tight. Lots of watering coupled with tight soil will kill your plants before they have a chance.

Just outta interest, thats not pure peat moss your using is it? I made that mistake a long time ago, plants just will not grow, the pH is like 4.5 and it absorbs an insane amount of water.

no peat moss. i always squeeze the cups when wet to break to soil up. i pulled them back to 14-18in. and i water when the first 1/2 in or so is dry my drainage is really good and if i go any longer without watering their leaves start to droop and curl.
i dont have a small enough measure device to see how much iam watering them but 15-20 squirts is about 1/2 a shot