Why are my results so varied?

Hey guys n gals
Moley here.
Ok, I dunno what the heck is going on, I'm currently about one month in from seed.

22 plants
3 strains
Neville's Haze
Skunk Haze
Jock Horror

3 of the plants (not pictured here) are the best 3 I have ever grown, (well, so far)
But half of the plants pictured here either have:
Yellowing leaves
Upward curling leaves
or
severe drooping leaves.
Thing is, they are all in the same potting soil, (sorry guys, no specifics on the soil, bags gone) and all get watered when the soil is bone dry.
So how come some are fine, some are alright and some are just shite?
unless I'm overwatering, but I water when the soil is dry 2 inches down.
I'm using distilled water by the way and have currently not added any fert.

could b that the soil you are using is very high in newts an its overwelmed! thus causing em to die...an the strain that are goin gd are adapted to the high levels i would recommend transplanthing the dodgey ones into new soil that has vertually no newts any local garden centre should have what you need an give that a go. Also could be that the plants dont have enough breathing space in those small pots but i dont see that as being the problem as the pots are right for the size! other than that im not sure...ne1 else have any ideas?
Gd Luck!

D

oo also depending on what lights you are using i.e. HPS..MH you could be heating those babies up to much an its drying out...the best lights for Veg are fluros...if you are using HID lights try moving it further away from em..an give em an occasional spraying.

Yep theres a post around here somwhere with the same problem you are having.... moved the HPS KAZAM! problem solved...so move the lights an see what happens..do hope you are using HPS or i've typed all this for jack..neway gd luck once agen!

d

Hey.
Thanks for the ideas, yeah originally like 2 weeks ago they were too close to my HPS, so I put them under a fluro for a week, now they are under a HPS but they are about 1.5m away (roughly around 5 feet) from the light.
I think it could be the soil, but the thing is one from each strain is doing amazing, where as the rest are not doing so well, thats why I'm confused, if they were all good / bad I'd understand, just some are doing better than others, I suppose it's all genetic.
I just moved the good ones into a better soil base that I have used before and am planning to transplant the rest within the week.
Also from the move I just done, the really good ones have a much further advanced rooting structure than the ones that I have now thrown away (not pictured but they were completely fucked)

shit man!! i hope everything works out i hate it when u have to dump somthing that could be so beautiful haha o well let us knw how it goes!!

what light u usin? cuz thats a lot of plants maybe it not givin enough light and shit?just suggesting

got exactly same problem (bottom leaves yelowing/purpuling, top leaves curling up) I'm thinking about a shitty soil too, because mine is some organic universal soil without no specifications. but I think that it migth be a lack of ferts, I'll try to fert them more.

since placed in my miracle grow soil, they seem to be doing better.
Anyways, my light= a 400w HPS,
I don't get how, "there are too many plants" because, the optimal size for the light is like 2x4 or whatever, and thats less space than is currently being used.
It's not like the plants suck up the light.

i wasnt saying that there wasnt i didnt even think i was right at all lol just saying shit to try and do something lol

I ain't a pro or anything dude but I had the same problem too first starting out,and found if I used alot of extra perlite in my mix I found myself watering a little sooner each watering but at the same time I wasn't drowing my pot's....for example when watering your pot everytime you have to let the water run right through,therefore for the first couple of days the soil will be super wet until the plant suck's the water out of the soil and natural evaporation with the fans and stuff but you still have those first couple of days were the soil is soaked heavy,anyhow try a fast run of mixture for medium,a little extra work but less yellowing in the long run,also going heavy with perlite in the mix will promote heavy root development therefore the plant with a bigger root base can take alot more stress that you throw at her.with a bigger root system the plant can handle heat better! over watering better! gives a better overall chance of allowing time for nute corrections,grows faster,stronger,therefore protects the plant even better when going up agaist human error lol........for example I viewed the pics of your plants and I am also from seed to 4 week's just under flourecent lights and I doubled the size easly>? not making a claim to fame or anything friend lol,but when I seen your plants from a month of age I was kinda surprised? no offence by the way!

1st week from seed under 4000 lumen's of flourecent lights full spectrum

14 teen days from seed! lumens increased to about 7000

3rd week 21 days from seed still flourecents

I don't have pics done at 4 weeks but let me say they doubled in size from 3rd week.