browning leaf tips in veg!???

[bootlegskate]

HYDROPONICS/Aero Ponics

How long has this problem been going on? since cloned from mother plants, occurs in flower also
Are you growing in a PVC grow tent? (example: Hydrohut or any other non brand tents)hydrohut that was sent back to vendor to be cleaned, had it cleaned before put in use as a precaution
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)canna coco, coco pots
What STRAIN are you growing?granddaddy purple, bubba kush, big bud........ all from clones
What was the establishing technique? (Were the seed or clone?)
What is the age of your plants?two weeks since clones rooted
How tall are the plants?8-12"
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?veg yet it occurs in flower also
What Technique are you using?hand watered, no topping!!!!!
What substrate/medium are you using?(Hydroton, RockWool etc.)canna brand coco
What is the Water temperature????? room temp, 5 gallon water jugs kept in dark closet
What color are your roots? White? Brown? Are your roots slimy? white
What Nutrient's are you using?(If growing soiless)canna's coco line ( A&B, rhizo, cannazym, and PK when in flower)
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful*7ml/gal A&B in pictures, what it says on bottle for rhizo and cannazyme ( 10ml/gal, 9ml/gal)
How often are you feeding? (If using soiless)almost everyday, when top on the coco is dry ..... check about 1.25" deep, if dry then water
How often are you giving nutrients? (If using soiless)every watering
If flowering, when did you switch over to using Bloom nutrients? day 1
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)simultaneously
What is the TDS/EC/PPM you are using?drip tester
What is the pH of the "Tank"?~6.0
Are you sure your calibration is correct on your equiptment?
When was your last watering?yesterday
What is your water temps?room temp?gradually increased from 6ml/gal to 7ml/gal
When was your last feeding change? (ie. grow-bloom-micro-additional)
How often do you clean your system: example: Flush out water replace with clean water and nutrients?
What size bulb are you using?4' 8 bulb T5 in veg, (2)
1000w lights in flower
What is the distance to the canopy?it ranges from 3-5"
What is your RH Factor(Relative Humidity)? was around 25 but recently ~40 after ultrasonic fogger humidifier made
What is the canopy temperature? ~83
What is the Day/Night Temp? (Include flucutaion range)70-82?
What is the current Air Flow? (cfm etc.) leaves moving constantly
Tell us about your ventilation, intake exhaust and when its running and not running ? fan on 24hrs
Is the fan blowing directly at plants?yes, it oscillates from left to right
Is your water HARD or SOFT? R/O water about 45 ppm
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?RO!!!
Are you using water from a water softener?
Has plant been recently pruned, cloned off of or pinched try to keep very bottom of plants groomed
Have any pest chemicals been used? If so, What and When? NO
Are plant's infected with pest's NO

 

[bootlegskate]

why wont this let me post pictures???
i recieve the error: "Your Post contains one or more URLs, please remove them before submitting your message again."

i uploaded them to my icmag gallery and input them into message body from reply to thread page. i tried looking to see if there is a minimum post to be able to put pics in but didnt see anything

 

[wishbone420]

think u can post pics after 2 post

 

[bootlegskate]

this is the ultrasonic humidifier i made to help with rh

 

[HeadyPete]

You are feeding too much and burning them and it is locking out mag (fading leaves with green veins). Back off the feeding. The downclawed leaves are the early warning sign for overfeeding.

If you are in a hydrohut then there could be an issue there with the PVC offgassing. It is a known problem for people.

 

[Fazerbf]

i would flush with plain ro ph'ed amd then feed half strength for a few feeds

 

[mexilandrace]

too much food, and you also got lock out as a result.

 

[tree&leaf]

That's potassium deficiency caused by high substrate salinity, locking Potassium out. Flush them with plain RO water ph'd to 6.5, to flush those built up salts.

Feed with 50% recommended doseage next watering with no Rhizo or Cannazym and adjust upwards when the plants have stablised and started looking greener. Ph to 6.5.

You could also consider foliar spraying with either Seaweed extract and/or Fish emulsion at the recommened dose for foliar feeding - that will help to green them up and give them immediate nutrients without wating for the root nutrients to take effect.

Don't foliar feed plants more than 2-3 weeks into flowering.

Love your home made fogger by the way - cool.

 

[bootlegskate]

That's potassium deficiency caused by high substrate salinity, locking Potassium out. Flush them with plain RO water ph'd to 6.5, to flush those built up salts.

Feed with 50% recommended doseage next watering with no Rhizo or Cannazym and adjust upwards when the plants have stablised and started looking greener. Ph to 6.5.

You could also consider foliar spraying with either Seaweed extract and/or Fish emulsion at the recommened dose for foliar feeding - that will help to green them up and give them immediate nutrients without wating for the root nutrients to take effect.

Don't foliar feed plants more than 2-3 weeks into flowering.

Love your home made fogger by the way - cool.

thanks! i built it b/c i thought it was cool haha, seems to work pretty good. ph to 6.5 in coco? i usually ph ~6.0. i am running the coco A&B line

thanks for others replies also, so i flushed them that night with R/O water ph at ~6.0. we will see if they get better!

 

[tequila_sunrise]

with your fogger, try having a small pc fan blowing down into the res, this will cause the fog to lift up and hit the roots.

 

[bootlegskate]

with your fogger, try having a small pc fan blowing down into the res, this will cause the fog to lift up and hit the roots.

i do have a pc fan on the lid of the blue container, how would the fog hit the roots? i am in coco pots

 

[tequila_sunrise]

i do have a pc fan on the lid of the blue container, how would the fog hit the roots? i am in coco pots

oh... I see. Guess I had one too many

Well if you were cloning in the fog box, you would get good results...