[Top.Shelf]

A few of my clones that have been in the tent a couple of weeks now have taken a turn for the worst. They initially had an extended time under a couple of 18w floros due to work being done on my house. They were stuck in a cramped box and left in plastic cups of coco for about a month before going into the tent and under a 600w.

They seemed ok at first but then started to yellow, the SLH clones are light in colour but haven't got the same issue as the Sleestack clones. Which I believe to be a Potassium deficiency because of the purpling on the stems and the leaf damage

Lights off temps min is 16C lights on temps is min 20C never exceeding 23C, it's been pretty cold of late. They were on 1.5ml per L of Coco A&B and getting a foliar spray of Maxicrop weekly. Problems begun about 5 days ago, although they were light in colour prior to that. Have stuck the heating on for them during the 6 hours lights are off and gave them a foliar spray of 1/4 strength nutes with their Maxicrop last night. Also transplanted the clones into 10L pots and upped food to 2ml per L

Any ideas would be appreciated! Wanted to get them into bloom by the end of the month at latest.

Sickly Sleestack




SLH for comparison

[EastCoast710]

having the same exact problem.. with 0 help lol.. no clue. if you figure it out let me know I will do the same

[Big-Narstie]

I think the problem starts with our water! Try mixing ya tap with RO/distilled.

Or I pulled mine through with mono magnesium rhizotonic/cannazym, up the volume of water.


First thing test the runoff for ph/ec. Itis a prob I see all over n in all mediums. To much CAL maybe? But Im using the 50/50 water mix in coco and they're happy as happy plants

[roll it large]

Imbalance of nutrients and way too much too

1ml per litre is ample for that size plant

I can't even remember the last time I went over 1ml per Ltr on my Base nutes
Leave out the maxi crop too.keep it simple

[RudeDog]

Originally Posted by roll it large

Imbalance of nutrients and way too much too

1ml per litre is ample for that size plant

I can't even remember the last time I went over 1ml per Ltr on my Base nutes
Leave out the maxi crop too.keep it simple

Cheers mate...I've got a few plants in coco and they look the same, I upped the feed last watering. I also need to stop treating plants in coco like they're in soil.

[roll it large]

Check your runoff ec should be a couple points under what you are feeding

[Top.Shelf]

Cheers guys, I only gave them 2ml as a test yesterday to see if they'd perk up, prior to this it was 1.5ml per L. I can drop back to 1ml per L though.

How often do you feed your plants roll it large? Iirc you use drippers, but when first transplanting into a larger pot what is your watering schedule?

Forgot to mention I have some plants from seed that have been vegging for a week less than these and although they're also a little light in colour they seem fine

[roll it large]

Originally Posted by Top.Shelf

Cheers guys, I only gave them 2ml as a test yesterday to see if they'd perk up, prior to this it was 1.5ml per L. I can drop back to 1ml per L though.

How often do you feed your plants roll it large? Iirc you use drippers, but when first transplanting into a larger pot what is your watering schedule?

Forgot to mention I have some plants from seed that have been vegging for a week less than these and although they're also a little light in colour they seem fine

First check ec of nutrient if you don't have one I would make that a priority purchase

Also you haven't mentioned ph ?

Most importing tools that stop you running into problems

This last run was hand watering every other day till runoff in 7.5ltr pots
When transplanting from 0.7ltr pot to 7.5ltr I water the outside pot edge only this encourages root development no need to drown em and repeat every 3 days until roots start appearing from bottom then I do every other day

[Top.Shelf]

pH is 6 but has been 5.8 and 6.2. EC of my tap water is 0.5, to be honest I haven't checked it when I've added nutrients as I've used the same schedule before, but I will when I feed the plants from seed. I watered as you suggest when transplanting into the bigger pots, I'll leave them for 3 days or so before to encourage the roots to spread.

[Green81]

Easy top shelf, those exact same symptoms I had on my girls, we all need to be looking out for either RA, russet mite and or a pathogen than starts to attack the plant cells once weakened by the root aphids or phantom insects. I've been spraying every 3-4 days with various insecticides and have just hit my room with a heavy application of fungicide, 2 days later plants have perked up considerably and I'm about to flip. I can actually sleep well when before I thought it would be a start-again situation.