Deficiency Or Nute Burn?? :(

[tristan1986]

Hey guys,

I have a few leaves on multiple plants and was wondering if i can get some assistance identifying the issue.

I am growing in a 3/4 Perlite 1/4 vermiculite mix,
Growing Using Canna Flores Moderately 2ml a liter (Recommends 2 or 3ml p/l)
With A PH'd Water Flush Every Second Week

No other nutrients used at this point and i am in day 5 of week 4 in flower.
Any assistance is greatly appreciated :)

[polishpollack]

That looks like magnesium deficiency, but the Image Reaper thinks I'm usually wrong, so what do I know?

[headshake]

fill out the form please.

-shake

[tristan1986]

Your Equipment:
.1) Type and wattage of lights. MH for VEG HPS for Flower
.2) Distance from tops? 12 Inches
.3) Reflector type? Similar to Batwing
.4) Is there a consistent fresh air supply? Yes
.5) Do you have an exhaust fan and a circulation fan? Yes
.6) What are the bulb wattages? 2x 600w @ 12/12

Your medium:
.7) Specific brand and type of soil - 3/4 Perlite & 1/4 Vermiculite Mix
.8) Size of container. Unsure
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings? Rockwool used with clones

Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting?
Tap Water, PH of 8.0 before adjustments
11) Method of checking water ph. (ph pen, test strips, aquarium test kit...)
PH Pen
12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...)
Canna Line AUTO adjusts the water to 6.5ish
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule.
Canna Flores Range @ 3ml Liter, Fed every second day or when medium is dry
14) How often are you watering between feedings, and how much per watering?
Feeding With Every Water except for a fresh water flush from time to time
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)
Superthrive but only when in VEG
16) Are your ph levels stable, or do they fluctuate?
Stable
17) What is your ingoing water's ph? ...your runoff ph?
Goes in 6.5 comes out 6.5
18) Do you foliar feed? If so, with what, how often, and at what time do you spray?
No

Your growroom:
19) Indoors or outdoors? Indoor
20) What size of closet, room or hut? Medium Size room
21) What are the temps and humidity levels while lights are on? ...With lights off?
28c 60% humidity (unsure when lights are off)
22) Have you seen signs of insects in the growroom?
Had mites a few weeks ago, all gone now

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?)
Both (picture leaf from plant is a sativa dominate strain)
24) From seeds or clones?
Clones
25) Is this an autoflower strain?
No

Thanks Guys

[sarah louise]

The clear close up of the damaged leaf is a good shot, but it would be better if we also had an image of the whole thing, so the damaged areas could be seen in context of the overall health of the plant.

Which Canna formula are you using? The Hydro or Aqua formulas should buffer to a significantly lower pH than 6.5.

Are you using anything to maintain trace elements, eg seaweed?

I'd say it's a toss up between trace element def. and high pH.

[tristan1986]

Hey Sarah, thanks again for you input in one of my questions lol

I am using the all in one range Canna now makes, i'd have to check again which PH exactly it sets at but i think it was around 6.5.

I'm looking at 4 different plants in that small area and they are all suffering symptoms. I think i may have accidentally mis measured some fertilisers i made and thats why those 4 plants were affected and no others as they are a few more which i used a different bucket for :)

Thanks Guys

[sarah louise]

I am using the all in one range Canna now makes, i'd have to check again which PH exactly it sets at but i think it was around 6.5.

Sorry not to get back sooner Tristan, I lose track of threads sometimes. You've probably worked it out by now, but I'll say it anyway. Canna's all in one is a soil formula. That it in itself may be the reason for the poor performance.

Hope the problem is already resolved.

sara.