Please help them theyre dying!

[smackhead1984]

please help me, ive described my setup as best i can, ive spent hours looking at posts on here and i still cant tell what is wrong with my plants

-indoor grow
-soil
-vitamix soil
-nothing added to the soil
-Soil pH = 6.5
-Water source = tap water
-Water pH = 6.5
-Age of plant = 4 weeks
-Type of fertilizer = biobizz's bio grow
-Rate of application = currently 1,5ml per litre
-Lighting source = 600w HPS
- Distance from plant = now 20 inch, was 17 inches for last day or two as plants grew and lights werent adjusted
-Temperature 27 - 30
-36% humidity. (Maybe due to no watering yesterday and not enough watering the day before, both the plants and soil were bone dry.
-Lighting schedule = on 24 hours
-Ventilation = none as yet, shed door is opened once a day for 20 mins and is larger than a spare room.



I had bad yellowing of lower leaves on 3 plants starting 2 days ago but at same time the rest of the same plants were a deep green, all of my plants leaves were droopybut looked healthy. So I thought id tackle the droopyness first and thought they may be overwatered so i never watered them at all yesterday, this morning they where all withering and they looked as though they were nearly dead. I immediately watered very generously, more than double what I normally would, I watered with just water no fertilizer added just in case, but I did add half a tea spoon of epsom salts to a gallon of water to tackle the yellowing.
Half an hour later the plants already looked better from the watering but I think I will loose quite a few leaves if not plants, cant believe that they changed so dramatically.

After the no watering incident all the plants have seemingly slightly different conditions???
Before that just 3 plants had blotches on the lower leaves spreading from the middles but not on the green veins, thatâ??s what made me think it was magnesium deficiency.


Heres some photos fo the sickest ones, the yellow and droopyness of the leaves was present before thebad watering experience but the curling down and up of the tips are just on two plants and hasve newly appeared today, im gutted
Yellow blotches
http://www.freefilehosting.co.uk/fil...y%20leaves.jpg

saggy as hell, also yellowing and dry
http://www.freefilehosting.co.uk/fil...llo%20leaf.jpg

same plant, worst leaf
http://www.freefilehosting.co.uk/fil...ing%20leaf.jpg

same pic different lighting
http://www.freefilehosting.co.uk/fil...low%20leaf.jpg

Saggy!
http://www.freefilehosting.co.uk/files/1427/saggy.jpg


Turned up tips??
http://www.freefilehosting.co.uk/fil...0up%20tips.jpg

Turned down tips??
http://www.freefilehosting.co.uk/fil...own%20tips.jpg

Different ailment maybe? as on end of leaf?
http://www.freefilehosting.co.uk/fil...g%20leaves.jpg

Yellow blotches
http://www.freefilehosting.co.uk/fil...es%20close.jpg

Please help them!

smackhead1984 Reviewed by smackhead1984 on 02-05-2008. Please help them theyre dying! please help me, ive described my setup as best i can, ive spent hours looking at posts on here and i still cant tell what is wrong with my plants :( -indoor grow -soil -vitamix soil -nothing added to the soil -Soil pH = 6.5 -Water source = tap water -Water pH = 6.5 -Age of plant = 4 weeks Rating: 5

[Mr. Clandestine]

I'd recommend getting some ventilation in there as soon as possible. That may or may not be contributing to your problems. But still, 85°F is a little on the warm side, and stagnant air is doing nothing to help matters. And with your light being constantly on and the temps being pretty constant, your plants are transpiring faster than they would on an 18/6 schedule. Your humidity could be a little higher, but low humidity is much less of a potential problem than high humidity. Lower your temps, and the humidity should naturally begin to climb. Warm air absorbs more moisture.

I don't know anything about the brand of soil you're using, though it looks like it could use a little more perlite. As for pointing out a more specific diagnosis, I'll leave that to the more experienced growers. With the specifics you've listed, someone should be around soon to lend their opinions.

Good luck. :jointsmile:

[smackhead1984]

thanks for your help mr C, im going to install a fan tomorrow hopefully, in the mean time in going to just pin up a corner of the mylar curtain on one side of my grow area, and place a bowl of water next to the plants hopefully that will tide them over.

Please hep me diagnose the yellowing people! i dont think they got much time left, i can only check on them once a day because of work i just hope they dont go in between,

[sublime27]

How is the drainage in your soil? It doesnt look like you have any or much perlite. Maybe do a transplant with perlite and your soil mix. The fan though imo will help alot. hope you get it worked out.
good luck.:jointsmile:

[smackhead1984]

the brand of soil is vitamix-pro from ikon international, im not sure how much if any perlite is added, if anybody knows anything about it could u let me know, ive done a search but cant find any details on it. The shop i bought it from said it was all i needed for our kind of growing though

[stinkyattic]

I think your pH is off, and something else is locking out nutes as well, possibly from the soil mix. Check the pH of your runoff and then follow this flush instruction:

Water HEAVILY. To the point of runoff, with plain ph'd tap water (at pH 6.8 if the runoff pH shows that it is below 6.6, or pH 6.5 if it is above 6.9), and use 3x the water as the volume of the pot. You are flushing the plants. You don't have mag def, so the epsom salts were not needed, and you will want to remove them from the soil.
After you flush, water with 1/4 strength grow fertilizer.

[smackhead1984]

i did water generously yesterday with just plain water to the point of there being a little run off , and the ph came out as 6.5 but the ph test kit goes up in only 0.5's so that was estimated by the colour, will the plants be able to stand this watering two days in a row? thanks alot for your help, it makes sense as they all have different symptoms. im goin to ph test it asap if you let me know, thanks again

[smackhead1984]

sorry my last post didnt make much sense lol, i'll have to water and flush them first thing in the morning because im working tonight, should i be looking for the yellow leaves to turn back green, stay yellow? or shrivel and die? or should i snip them off?

is it likely i'll have a much high number of males now because of this stress?

big shout out to sublime27, Mr. Clandestine an stinkyattic thanks for the help!

:rastasmoke:

[stinkyattic]

Just let the leaves be, because what they do will be an indicator of what was wrong and whether it is still wrong.
you GOTTA check the pH ASAP so you know how to flush. Unfortunately if all you can resolve is wihtin 0.5 that is goinf to be a real tough one!
Stress can cause hermies (male flowers on a female plant) so the sooner you get this fixed, the better.

[smackhead1984]

yeah i was a bit gutted when i got home cos the ph test is from the same company that makes clonex rooting gel, wouldve thought it'd be a bit more accurate,

any links to a better ph test for future use?