Damaged leaves, keep getting worse, what is wrong and what should I do?

wafhigh

Member
Good evening, this is my first grow and this forum has been my main source of information all along.

Some of the leaves on my babies (especially the biggest ones) have been dying and it keeps getting worse,
can anyone tell me what is wrong and what should I do?
It doesn't start on the edges but in the middle between the "lines" ... you can see how it starts on the pictures where some leaves aren't too bad yet.

The plants are white rhino from nirvana seeds, almost 5weeks old (I plan to flower them on the 11th).
They are mainly growing with two 125w 6500k fluorescent lights (that I will switch to 2700k for flowering), although I recently added four 42w 2700k and 3 small (27w?) 5500k but those are only turned on when I leave the closet door opened (about 1/2 of the time).
I have been using ForFarm fertilizers as indicated on the chart, grow big and big bloom, but using 11days weeks so that they can veg for 45days.(I am supposed to start Open Sesame soon, idk if I should)

The potential causes I have in mind are:
-Too low PH (I only have a cheap soil tester that always gives me the same result but it used to be slightly below 6 so I have been using 1/4tbsp of PHup per gallon) ... I am waiting on an ebay ph tester for their water so that I can give them exactly what they need
-Nutrient burn. I have been watering them with plain water for the past 3watering (not even PHup)
-Too much light, I noticed the timer was set to 24hrs a day instead of 21/3 (I don't know how long it has been that way but I recently added a bunch of lights and the dying started afterward). I switched it to 18/6 two days ago.
-Burns from the water+nutrient sitting on the leaves and the lights hitting that all day long. I am more careful about not pouring water all over the leaves, I now water them not too long before the lights turn off, and I haven't been using any nutrients lately
-Some kind of nutrient deficiency?

I hope you can help me save Fat Monster!
Thank you

edit: I don't know if this is related, some of the lower younger leaves were very pale/light green but I don't see that anymore today.
 

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wafhigh

Member
Is that mylar???
Yes

looks like another case of nutrient burn lime73 lol
I hope that's it but it has been getting much worse since I have been flushing them with plain water.

looks like you might have sum mites as well
Really? That would be horrible =/ What makes you think so?

Could be but...I don't see damage to too many other leaves? I'm thinking hot spots from the reflected light from cfl's.
Could be but I only use reflectors with the 42Ws sitting on the floor and they are cheap plastic. I don't think the mylar could do much damage because it's pretty lose and it is constantly moving around in waves due to the fan... but like I said the light has been on 24hrs probably for a long time
 

MrStickyScissors

Well-Known Member
how long has it been sense you fed them last? if you see little redish or orange dots on your leaves look underneath them real close and see what you find. also how you are ph'ing your water or testing the ph sounds kinda unreliable but if your in gud soil it should have a buffer so as long as its in the rite ballpark it should be cool. other than what ever is going on with your leaves maybe pests or sumthing to do with your fertilizing they look hella healthy.
 

lime73

Weed Modifier
Has a light ever been in direct contact with the suspect leaves...could burn them if it was touching to long?

Overall nice plants though!

HAHA just saw I posted suspect! Like it is Csi or something. lol
 

wafhigh

Member
how long has it been sense you fed them last? if you see little redish or orange dots on your leaves look underneath them real close and see what you find. also how you are ph'ing your water or testing the ph sounds kinda unreliable but if your in gud soil it should have a buffer so as long as its in the rite ballpark it should be cool. other than what ever is going on with your leaves maybe pests or sumthing to do with your fertilizing they look hella healthy.
It has been about a week, I watered them at least 3times in a row with plain water (more often than the usual every 2-3days). I don't see anything under the leaves but they look far better underneath. I can take some detailed pictures tomorrow.
I know the ph'ing is very unreliable, I should be getting my ph water tester anytime now (looks like the mailman has been stealing all my mail), I will try to pick up some ph strips soon because I have no idea what my tap water and the nutrient mix is like.
I do use the best soil and nutrients I have heard of (Fox Farm Ocean, following their nutrition chart)
I'm going to bed and will be back tomorrow, thank you for your help and support!
 

wafhigh

Member
Has a light ever been in direct contact with the suspect leaves...could burn them if it was touching to long?

Overall nice plants though!

HAHA just saw I posted suspect! Like it is Csi or something. lol

No the lights never came in contact with any of the leaves (and I turn the pots around pretty often). They haven't been growing as much lately (I never have to adjust the lights), they mostly just keep getting bushier. Thank you! I find them gorgeous and I spend so much time watching them with love, it kills me to see them hurt
 
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