Is this Nutrient burn?9⁰

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SabreWelder

SabreWelder

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Today came home from work to my plants looking like the pics below. Im not sure if they got nut burn or if its something else going on

Plants are on their 3rd week of Veg State. In a 2'x4'x5' tent

Using FFOF soil. theyre in 3 gallon fabric pots.

Using a marshydro sp250 light which is sitting 19"away from the canopy.

75°F-80°F and 50%-60%humidity.

I watered them on Dec the 9th i used General Hydroponics Flora Series and used 1- 1/2tsp of FloraMicro, 1- 1/2tsp of FloraGro and
3/4 tsp of FloraBloom that brought the PPM to 774 and Ph of 6.5 in 1 gallon of water and fed them half a gallon each plant. The runoff was 65ppm and pH 6.4

If im doing something wrong( which im sure i am) let me know, im open to constructive criticism otherwise ill never learn this stuff. Yesterday plants were looking great btw.
 
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needshelpguy

needshelpguy

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Doesnt look like my experiences with burn, one thing I do notice is your coco looks too dry though could be salt build up new to coco myself though but definitely looks too dry
 
Beachwalker

Beachwalker

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What do you mean by the runoff was 65ppm?

Without knowing more I would guess over-watering, but that's just a first impression; are they on a cold floor?
 
BigCube

BigCube

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Looks like pest damage. Get a jeweler's loop, check for pests, specially under the leaves.
 
Beachwalker

Beachwalker

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SabreWelder said:
I did that yesterday as well. Spent about 2 hours looking all through it no signs of pests.
Click to expand...
Agree it looks like mild bug (thrip?) damage, and you could look all day and never actually see one, but I suspect over-watering? What's your watering cycle like?
 
BigCube

BigCube

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Beachwalker said:
Agree it looks like mild bug (thrip?) damage, and you could look all day and never actually see one, but I suspect over-watering? What's your watering cycle like?
Click to expand...

Yeah thrips are hard to find unless they are out of control. But easy to get rid of.

Best practices are things like: do not leave leaf litter lying around. Dont let dead/dying leaves stay on the plant.
Wash your hands before visiting your plants. Quarantine any new plants until you can confirm they are pest free.

Thrips are very tiny, about 1 to 2 millimeters. The signs are whitish silver spots on bottom leaves, slimy looking spots on leaves and maybe even the odd flying one! They have wings but mostly do not fly. But the odd one might. Most people mistake them for fungus nats. But fungus nat larvae live in your soil. Thrips larvae live on (and under) your leaves. Starting with the lower branches. They will look like tiny worms, usually pale green or off white.

If its thrips, just use some insecticidal soap and remove all the damaged leaves.
And practice better grow room etiquette.
 
SabreWelder

SabreWelder

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Beachwalker said:
Agree it looks like mild bug (thrip?) damage, and you could look all day and never actually see one, but I suspect over-watering? What's your watering cycle like?
Click to expand...

Watering cycle about every 3 to 4 days when 1-2" deep in the soil starts to feel dry.
 
Beachwalker

Beachwalker

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SabreWelder said:
Watering cycle about every 3 to 4 days when 1-2" deep in the soil starts to feel dry.
Click to expand...
That's what I thought, you have to let that dry out all the way, one or two in. is not dry enough; and you need to keep checking for bugs cuz I agree with above I think you might have a mild thrip issue
 
SabreWelder

SabreWelder

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Beachwalker said:
That's what I thought, you have to let that dry out all the way, one or two in. is not dry enough; and you need to keep checking for bugs cuz I agree with above I think you might have a mild thrip issue
Click to expand...

Roger that.. ill re work my water cycle and keep looking for pests, bugs.

Thanks for all the info guys , really appreciate it 👍👍
 
Beachwalker

Beachwalker

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SabreWelder said:
Roger that.. ill re work my water cycle and keep looking for pests, bugs.

Thanks for all the info guys , really appreciate it 👍👍
Click to expand...
Instead of a finger an inch or two in the top, stick a finger in one of the drain holes down the bottom, when it's almost like dust coming out that's when you water

I mean you might have other things going on but to my eye it looks like mild thrips and mild but chronic overwatering

Also later when I get a minute I'm going to go look at my GH Flora bottles and figure out if you're overfeeding
 
bunkerking

bunkerking

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SabreWelder said:
Watering cycle about every 3 to 4 days when 1-2" deep in the soil starts to feel dry.
Click to expand...

Dont use that method. Its too misleading.

Lift the pots and feel the weight of them when full and dry.
Strive to keep it in the dryer zone. The more its in "dryish" soil, the more its going to thrive.
everytime you water the roots are going to be lacking any oxygen.

and wont get enough time to grow/take in oxygen before the next feeding.

water when it NEEDs it. You feeding every 3-4 days wont increase growth. Just makes it worse imo.
The longer you push it, the more roots that grow. Keep doing that until you need to feed that often.
 
bunkerking

bunkerking

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Beachwalker said:
Instead of a finger an inch or two in the top, stick a finger in one of the drain holes down the bottom, when it's almost like dust coming out that's when you water

I mean you might have other things going on but to my eye it looks like mild thrips and mild but chronic overwatering

Also later when I get a minute I'm going to go look at my GH Flora bottles and figure out if you're overfeeding
Click to expand...

Fabric pots ^ another thing ive done is use a cheap kitchen scale. and water when the weight of it gets to XXX. When i was struggling with getting it right.
 
Beachwalker

Beachwalker

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bunkerking said:
Fabric pots ^ another thing ive done is use a cheap kitchen scale. and water when the weight of it gets to XXX. When i was struggling with getting it right.
Click to expand...
Got you, in that case I would fill up one pot with the same medium and set it aside dry;

Then when I wanted to water I'd pick up the dry pot & compared it to the planted pot, and when they both feel about the same weight that would be the best time to water

OP, Learn & practice a wet/dry cycle of watering in soil for best results
 
BigCube

BigCube

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Last time I checked. Over watering doesnt put holes in your leaves. Or chew away parts of leaf edges.
 
Beachwalker

Beachwalker

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You must have missed the part where we talked about thrips several times above
 
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