Vains turning yellow??

Like the tittle says my vains on a incredible bulk are turning yellow?
She's about 4 weeks in to flower.
She's in pro mix hp
She was fed about 6 days ago at 820ppm and watered yesterday the Run off was 5.9
I'm running a 1000w hps and 2 marshydro panels for extra spectrum. I've never have had a problem with light burn. But could this be bleaching? Or am I be paranoid..

Jdcollins86 said:

Like the tittle says my vains on a incredible bulk are turning yellow?
She's about 4 weeks in to flower.
She's in pro mix hp
She was fed about 6 days ago at 820ppm and watered yesterday the Run off was 5.9
I'm running a 1000w hps and 2 marshydro panels for extra spectrum. I've never have had a problem with light burn. But could this be bleaching? Or am I be paranoid..View attachment 3847693View attachment 3847695 View attachment 3847702

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How is ur ph? Are u using calmag?

Looks like the beginning of light burn

My ph run off is usually in the high 5s every once ina while it will cream in to the low 6s.. and I add calmag every feeding

Tupapa said:

How is ur ph? Are u using calmag?

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r.i.kid said:

Looks like the beginning of light burn

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I rearranged the plants put the small plants closer to the panda film. Maybe less hot spots....

If you are PH your mixes ( feeds and water ) there is NO reason to check runoff.

If you are watering to the " point of runoff " EVERY TIME just to check runoff , that is why things will occur. You shoot yourself in the foot by " excessively " running water thru container to check runoff . All you are doing is " leaching / flushing " the soil .

If you have your feed correct BEFORE then you know when there is a problem created from feeding or some other means , then you can correct.

During flowering , the leaves will change , fade , die off , spot , burn . Which is normal as the flowers are the main attraction , not the leaves and branching anymore. As long as flowers mature , you are golden. Worry more about : P and K deficiencies during this stage than anything else.

Budzbuddha said:

If you are PH your mixes ( feeds and water ) there is NO reason to check runoff.

If you are watering to the " point of runoff " EVERY TIME just to check runoff , that is why things will occur. You shoot yourself in the foot by " excessively " running water thru container to check runoff . All you are doing is " leaching / flushing " the soil .

If you have your feed correct BEFORE then you know when there is a problem created from feeding or some other means , then you can correct.

During flowering , the leaves will change , fade , die off , spot , burn . Which is normal as the flowers are the main attraction , not the leaves and branching anymore. As long as flowers mature , you are golden. Worry more about : P and K deficiencies during this stage than anything else.

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Thanks for the lengthy reply. I've been letting the plants dry out damn near completely before I feed and or water. My understanding was you wanted a 20% run off when watering to get rid of excess salt build ups. This grow has kicked my ass honestly... multiple factors, plants got burnt and I ran out of room in the veg room,so they had to go into flower. Then I had a nasty thrip infestation, and I've been out of town a lot for work.

Budzbuddha said:

If you are PH your mixes ( feeds and water ) there is NO reason to check runoff.

If you are watering to the " point of runoff " EVERY TIME just to check runoff , that is why things will occur. You shoot yourself in the foot by " excessively " running water thru container to check runoff . All you are doing is " leaching / flushing " the soil .

If you have your feed correct BEFORE then you know when there is a problem created from feeding or some other means , then you can correct.

During flowering , the leaves will change , fade , die off , spot , burn . Which is normal as the flowers are the main attraction , not the leaves and branching anymore. As long as flowers mature , you are golden. Worry more about : P and K deficiencies during this stage than anything else.

Click to expand...

Jdcollins86 said:

Thanks for the lengthy reply. I've been letting the plants dry out damn near completely before I feed and or water. My understanding was you wanted a 20% run off when watering to get rid of excess salt build ups. This grow has kicked my ass honestly... multiple factors, plants got burnt and I ran out of room in the veg room,so they had to go into flower. Then I had a nasty thrip infestation, and I've been out of town a lot for work.

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Great explanation by Budzbuddha. I went through what you are going through. I went from growing dank weed to crap for two grows because I read like you that I should have 20% run off in soil. I ended up with a low soil ph problem. Calcium lock out causes necrotic spots on the upper leaves and is usually one of the 1st signs. Once I went back to my old way of watering everything went back to normal. Good Luck!