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Yellowing between veins on leaves?
- Thread starter Capn
- Start date
Capn
Member
Alright, It's back and as elegant as ever.
How long has this problem been going on?
showed up for about 3 days and slowly started going away, would still like to know what caused it tho.
Are you growing in a PVC grow tent? (example: Hydrohut or any other non brand tents)
Nope, Panda Box i made my self.
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)
E&F with Suspended pots, so roots essentially grow with no medium. They get to sit in the air for about 5-6 minutes.
What STRAIN are you growing?
BCBD The purps
What was the establishing technique? (Were the seed or clone?)
Clone in rockwool.
What is the age of your plants?
5 weeks from cutting, 3 week from root
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?
Flower
What Technique are you using?
Sog
What substrate/medium are you using?(Hydroton, RockWool etc.)
Hydroton
What is the Nutrient temperature?
72-68F
What Nutrient's are you using?
Botanicare TriFlex, Botanicare Silica Blast, Atami PK 13/14, DM Zone. 50gallon rez with gh dual diaphram pump. Water looks like a jacuzzi.
What is the TDS/EC/PPM you are using?
PPM @.7 470
What is the pH of the "Tank"?
6.0-5.7 (Had it to 6.0 for one day for silica treatment,)
Are you sure your calibration is correct on your equiptment?
Yes
When was your last watering?
Their watering schedule is 15 minutes flooding and 15minutes draining.
When was your last feeding change? (ie.grow-bloom-micro-additional)
flushed the rez 4 days ago.
What size bulb are you using?
600w HPS
What is the distance to the canopy?
8inches
What is your RH Factor?
35-30%
What is the canopy temperature?
80-76F
What is the Day/Night Temp? (Include fluctuation range)
Day 78F, Night 66F 12degree change
What is the current Air Flow? (cfm etc.)
Room is exhausted by 90cfm bathroom extractor fan. The intake is a 215cfm in-line booster fan. I have negative pressure for some reason that I don't understand though. The walls are pulled taut.
Is the fan blowing directly at plants?
Yes, 2 small box fans and 1 stand fan. They're pretty well ventilated
Is your water HARD or SOFT?
I use RO water.
Has plant been recently pruned, cloned off of or pinched
Negative
Have any pest chemicals been used? If so, What and When?
Sprayed some garlic oil on em way back when they were clones. Didn't really seem to do anything to them or the thrips.
Are plant's infected with pest's
Minor thrip problem, no real noticeable amount tho. 1 or 2 thrip larva on each plant every night I check. I kill everything I see and I check vigilantly.
How long has this problem been going on?
showed up for about 3 days and slowly started going away, would still like to know what caused it tho.
Are you growing in a PVC grow tent? (example: Hydrohut or any other non brand tents)
Nope, Panda Box i made my self.
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)
E&F with Suspended pots, so roots essentially grow with no medium. They get to sit in the air for about 5-6 minutes.
What STRAIN are you growing?
BCBD The purps
What was the establishing technique? (Were the seed or clone?)
Clone in rockwool.
What is the age of your plants?
5 weeks from cutting, 3 week from root
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?
Flower
What Technique are you using?
Sog
What substrate/medium are you using?(Hydroton, RockWool etc.)
Hydroton
What is the Nutrient temperature?
72-68F
What Nutrient's are you using?
Botanicare TriFlex, Botanicare Silica Blast, Atami PK 13/14, DM Zone. 50gallon rez with gh dual diaphram pump. Water looks like a jacuzzi.
What is the TDS/EC/PPM you are using?
PPM @.7 470
What is the pH of the "Tank"?
6.0-5.7 (Had it to 6.0 for one day for silica treatment,)
Are you sure your calibration is correct on your equiptment?
Yes
When was your last watering?
Their watering schedule is 15 minutes flooding and 15minutes draining.
When was your last feeding change? (ie.grow-bloom-micro-additional)
flushed the rez 4 days ago.
What size bulb are you using?
600w HPS
What is the distance to the canopy?
8inches
What is your RH Factor?
35-30%
What is the canopy temperature?
80-76F
What is the Day/Night Temp? (Include fluctuation range)
Day 78F, Night 66F 12degree change
What is the current Air Flow? (cfm etc.)
Room is exhausted by 90cfm bathroom extractor fan. The intake is a 215cfm in-line booster fan. I have negative pressure for some reason that I don't understand though. The walls are pulled taut.
Is the fan blowing directly at plants?
Yes, 2 small box fans and 1 stand fan. They're pretty well ventilated
Is your water HARD or SOFT?
I use RO water.
Has plant been recently pruned, cloned off of or pinched
Negative
Have any pest chemicals been used? If so, What and When?
Sprayed some garlic oil on em way back when they were clones. Didn't really seem to do anything to them or the thrips.
Are plant's infected with pest's
Minor thrip problem, no real noticeable amount tho. 1 or 2 thrip larva on each plant every night I check. I kill everything I see and I check vigilantly.
yellowing veins / green leaf is magnesium defeciency. are the lower leaves yellow but not falling off?
is it green leaf yellow veins or yellow leaf green veins? you said it was only new growth? thats mn manganese, micro def. your ph was prolly off.
Secret Squirrel
Member
better color here
knna
Member
Probably Fe (iron) deff. And/or Maybe Zn.
On both cases, high ph often is the cause. Correct ph to solve the problem.
For fastest recovery, you can give a foliar aplication with a micro's solution, or an "greenery supplement" that usually are mostly Fe. Seaweed extracts often works well too.
On both cases, high ph often is the cause. Correct ph to solve the problem.
For fastest recovery, you can give a foliar aplication with a micro's solution, or an "greenery supplement" that usually are mostly Fe. Seaweed extracts often works well too.
Secret Squirrel
Member
It kinda looks like light burn /heat stress?
Secret Squirrel
Member
8 inches away IMO is too close.unless its like a t-5 or some type of flo
So Is It a air cooled tube? or hood?
does this problem only affect the bottom of the plant or just the top?
What is your run off PPM?
allso 470ppm seems really low did i read that right?
Sir.S.S.
So Is It a air cooled tube? or hood?
does this problem only affect the bottom of the plant or just the top?
What is your run off PPM?
allso 470ppm seems really low did i read that right?
Sir.S.S.
