Whats wrong? (pics shown)

HELP!!!

 

If your talking about the spot on leaves, looks like spider mites to me.

 

cant be i treat them with a insecticdal soap......

 

Yo dude,

You zapped em heavy with fertilizer. That is what a classic calcium deficiency looks like. What ferts did you apply? You can drench with alot of water and if you can find some calcium sulfate, spike in fingerfulls around the stem and then paint the topsoil white and then water it in. Let the soil dry out well and then get some worm castings or compost. You are applying way too much ferts...

 

Just in case you haven't used ferts yet, your soil may be too strong for the young one. Happened to me on my last grow........the soil was way too strong....then on top of it i made the mistake of misdiagnosing it and adding ferts and the end result was buds that weren't finished at the time of the "had-to do it" chop. The leaves were all dead and crispy and they still had 2-3 weeks to go. Also on a side note........that plant should have more nodes for how tall it is......may want to move the light a lil bit closer as well.

 

ferts have been applyed in very minimal amounts, soil is a peatmoss and organic compost mix. plants are 8 inches from 250watt hps with a fan blowing directly on them...and the seedlings are under 4 inches so i figured 3 nodes was not to bad of streching but whatever i dont know much about growing i just do it......

 

hey guy, didn't mean any offense. Those pics are a bit deceiving, look a bit taller than under 4in. Since nutes have been used id give them a flush (2gal water for 1gallon of soil, ex. 3gal pots get 6gal water) and then wait till they show signs of needing nutes and apply at 1/4-1/2 the recommended dose.

 

had flushed a day agow, looking worse now...mhm

 

to be honest i've never flushed and had it look worse, but are you pH adjusting your water?? Using tap water, or filtered water or what??? What kind of soil are you using???

 

my water is delivered by truck because i live quite a way out of town. but its a well known fact they keep the town water at a PH of 6 mhm

 

i understand the "well known" fact business.....my well water was "well known" to be a pH of 6 as well. After getting a test kit and actually testing the pH myself it was actually 5.1-5.5 wich is no good for cannabis. I would strongly suggest buying a pH test kit just to be sure that its not your water. And also you keep avoiding the question of what soil you are using. The soil may be too much for the little plants.

 

Looks heavily over watered. As the leaves arn't very dark green its not getting the nutes maybee PH as suggested. Check PH and ease up on the watering. It also could be a plant with weak genetics.
Spidermites arn't put off by a bit of soap either, white spots is a sign of them, check the undersides of the leaves.

 

PH problems would most likely manifest as blotchy patches of nutrient lock, not a saggy plant. The pics are blurry but the spotted leaves don't look like nutrient lock, looks like mites.

Sagging is a main indication of two things: Underwatering or overwatering.
If the plant is underwatered, it would be showing signs of chlorosis (yellowed leaves) because of nitrogen deficiency. Since the plant looks more-or-less healthy other than being saggy, it's most likely overwatering.

Overwatering is caused by one of two things:
1. The grower is being overzealous with the water, in which case cut back on the amount of water. MJ is an arid plant, it will do better in dry conditions than it will in wet.

2. The soil is too dense, meaning the water is not absorbing evenly into the soil so the plant isn't getting enough oxygen and/or the water is not evaporating fast enough and is sitting stagnant in the soil. You can add perlite or vermiculite to make the soil lighter.

 

Forgot to mention: you can test if your soil is too dense by watering from the bottom.
If the water soaks up to the top of the soil, it's fine. If it won't soak up all the way, the soil is not light enough.

It's better to water from the bottom anyway unless you are feeding or flushing. Top watering rinses the nutrients to the bottom of the soil, creating concentrations and encouraging salt buildups.

 

dude im not using any special soils, its organic compost from my garden and peat moss...ive used the same mix with 4 other grows and had no problems of this nature....and yes in that picture the plant probaly was a bit overwatered but thats because i had flushed them....but im thinking could this problem of been caused by switching from a floro lamp to a hps? might of been to hot and dry for the seedlings?

 

Can you provide a better picture of problem?

 

no point now, only 1 white widow remains standing, leafs yellow and dry. but new shoots are apearing on it so i take that as a good sign....after this grow im going to scrap this room and build a new one, I have a 8x8x10 foot space to work with and am looking for advice on wether a 250 watt hps or a 400watt mh would be better for the 3x4 foot flowering room im going to block off.....