Deficiency or burn? Help please!

[Totalonenxg]

This is a 30 day old og kush auto. Found brown spots on a couple leaves. Indoor, soil, fox farm grow big, big bloom for veg tiger bloom for flower. Ph is always around 6.5 when I mix. Checked runoff the other day 6.3. This is new to me. Is it nute burn, light too close 18” , I thought potassium deficiency one guy said don’t worry too much about it it looks fine possibly pushing nutes to the max. Thanks in advance.

 

[Dannydavito]

Turn off the blurple lights and post new pictures. Can't see much with those lights on.

 

[icetech]

holy crap they are all purple!!! They should put a big stickied post at the top of the forum about turning off purple lights when taking pics...

 

[Totalonenxg]

Sorry this is my first post didn’t see that post my bad will redo my pictures.

 

[Totalonenxg]

Here is the pictures I cut the worst 2 leaves off last night. She’s sleeping in the pictures when the lights come on it perks up very nicely. Under 1 300w and 1 1200w led light. Feeding Fox farm grow big and using root farm base nutrients. I was feeding half the recommendation on the nutrient bottle and the feeding about a week ago was the full 15ml of grow big and 10ml of root farm base in 4l of water. I always ph my mix and ph my straight water to around 6.3. Temperature in the tent reaches 82-85deg with lights on I recently moved them up some more temp stays around 75 lights on 68-73 lights off, humidity stays around 45-50. Remember this is a first timer thanks for your help. Oh and I since used straight Ph water for 2 waterings.

 

[Dannydavito]

Here is the pictures I cut the worst 2 leaves off last night. She’s sleeping in the pictures when the lights come on it perks up very nicely. Under 1 300w and 1 1200w led light. Feeding Fox farm grow big and using root farm base nutrients. I was feeding half the recommendation on the nutrient bottle and the feeding about a week ago was the full 15ml of grow big and 10ml of root farm base in 4l of water. I always ph my mix and ph my straight water to around 6.3. Temperature in the tent reaches 82-85deg with lights on I recently moved them up some more temp stays around 75 lights on 68-73 lights off, humidity stays around 45-50. Remember this is a first timer thanks for your help. Oh and I since used straight Ph water for 2 waterings.

How often do you water?

 

[Totalonenxg]

How often do you water?

I water only when the soil dries out and my pots are light. Give about 500-1000ml of water each plant prob 3-5 days apart feedings. I have a moisture meter I usually poke down to see what soil at middle and bottom is

 

[Dannydavito]

I'm gonna have to let someone with more experience take over. To my untrained eye it doesn't look too bad, maybe slightly overfed by the dark green color. Again I'm not very experienced so hopefully someone else will chime in.

 

[Totalonenxg]

I'm gonna have to let someone with more experience take over. To my untrained eye it doesn't look too bad, maybe slightly overfed by the dark green color. Again I'm not very experienced so hopefully someone else will chime in.

Thanks for your input.

 

[icetech]

They honestly don't look too bad... really dark though which can be from too much nitrogen, but not bad.. do you know your EC or PPM that you mix to? I used to run grow big also.. i stopped using FF nutes when 1 dose of tiger bloom cooked every plant.. really pissed me off.

 

[Brandon P Chewey]

Looks like you are over-watering.

 

[Totalonenxg]

Looks like you are over-watering.

Really I keep telling myself I let them dry out way too much maybe not. Any feedback helps

 

[icetech]

Really I keep telling myself I let them dry out way too much maybe not. Any feedback helps

The problem with over or underwatering is they look almost the same... 3-5 days and the pot getting light should be ok.. but different setups dry out differently. I assume you are using soil? I'm so glad i stopped using dirt

 

[Brandon P Chewey]

Cannabis plants can handle dry soil for a day or two, much better then it can handle/thrive in soil that is constantly wet/oversaturated.

 

[Totalonenxg]

Cannabis plants can handle dry soil for a day or two, much better then it can handle/thrive in soil that is constantly wet/oversaturated.

Good to know it’s usually bone dry if I stick my finger in it but that’s also not near the middle or bottom. And yes soil I added a little extra perlite, this is my second grow my first indoors.

 

[Totalonenxg]

Just thought I’d give an update. I’m really thinking it’s windburn from my fan I didn’t realize it moved a bit and was blowing directly on that plant. I’ve done some reading and the pictures really match up what do you think? is it a possibility.