I’m working with someone developing some water cooled LEDs. They work very well and we can customize the spectrum on large orders. The fixtures can be set up to operate as low as 70f if you run a chiller. I run mine with a simple heat pump and fan.
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Website?
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I’m piggy-backing on this taco thread to get input. First time I’m getting tacoing on the tops and I think it might be stress from the lights, and not a nutrient deficiency… Here’s the setup:
Mosca Sherb-Orbit, hybrid 50/50 or 60/40 S/I
4x2 tent using 2gal pots of Happy Frog
GH Flora 3-part nutes, plus Ca-Mg or Mg-S
400w Hortilux HPS vented parabolic w glass
18-24” away from tops, 71F, 61%RH, 0.98vpd
No sign of mites or bugs, I use a magnifier
36-40” tall, lollipopped, 4w veg, in w6 of flower
I’m thinking it’s light intensity because the tacoing is only at the top but not under the tops or further down. I’ve never had a strain so frosty, the buds are caked and even the fan leaves have sugar on the smallest leaflets, so this might be normal but just new to my eyes. The veg stage gets 5ml cal-mag per gallon, and flower gets 8-10ml mag-sulfur per gallon. Petioles are green. Since temps are slightly chilly and I’m in late flower (7-8w finish) the fan leaves have started purpling.
What’s your input?
Looks like the frosty leaves are fine to me but hard to tell with the lighting.
The fans don’t seem to have much issue praying. I’d say just an abnormality you may not be used to seeing from the frostier strain. Leaves tend to swell up or “curl” when the resin production is so vast on their real estate it mimics a curled leaf almost
But then again, purpling and some tacoing early does tend me to think about K (potassium).
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Thank you. I don’t get any tacoing early, only on this strain when it’s fully caked up and close to finishing. I was hoping it was just a mimic.
I forgot to mention my feed pH is about 6.5-7 so probably not a lockout. My other concern was possibly over stuffing them with high PPM but there’s no other signs of nutrient issues…no zebra, curl up/down or spotting.
Again, thank you Chief.
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What’s the air flow like on them? I see you’re in the 70’s so temps shouldnt be issue but if they’re getting battered by a fan it could be to dry possibly
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I’ll watch out for the fan. It’s a small and weak one, just enough to circulate and keep humidity coming up from underneath, but nobody’s getting blown around.
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I notice it happens on my plants that tend to be closer to a fan, half the time I’ll turn my fan above canopy down once I get later into flower but still allow it to oscillate, and will bump my sub canopy fans up all the way to equalize. Also helps keep the entire canopy at relative temp/air flow/ rh% I like & then helps drop temps towards then end.
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From the looks of the bud. Small flowers could be russet mites or the hop virus .
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No mites, I use a magnifier to check. It’s been too cold for mites, thank god.
Virus is unlikely since it’s fully indoor, clones from seedlings that have never been outdoors. I’m careful to keep ultra clean procedures in place, not touching anything if I’ve been outdoors. I usually do my tending early mornings after showering and putting on clean clothes.
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Early flower with stack still to pressure, I’d guess there’s a lack somehow in a macronutrient or the uptake of one. Still fixable just need to be careful of course.
I’m also curious what the pot temps are too, this could have something to do with the situation
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Just fwiw, I have scoped plants that I knew had mites, but still couldn’t see them.
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Did you veg those 4 weeks in the same pot?
And whats the soil?
Hard to say really, Sometimes its just the strain.
I would say, a combination of too small or big pots, watering not on point, heat issues and a bit too much nitrogen left in the soil.
Are you watering till run off? How much runoff?
Whats the ph and ec?
Looking at that little “twist” in that one leaf, I would say small pots, watering issue.
I get that when I knowlingly neglect my plants a little too much😂(should have transplanted or adjusted watering schedule+nutrients for those plants) too me its my sign I should transplant cause they rootbound.
As soon as I transplant them from a 2gal ish to a bigger, at least double or triple pot they stop with the twist leaf.
I think its because they are on the edge, like a severe drought, yet they get enough to still function Without showing major issues.
Unless you are over watering everyday with only, almost flooding the plant its actually kind of hard overwatering in mid flower, specially hps.
But the smaller the container the faster I run into issues in flowering.
Knowing your exact watering schedule could help figuring out whats up.
Also are they seeds or clones?, and when do you start counting the “veg” weeks if they are from seed or fresh rooted clones.
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• If you’ve used coco or coco-based root plugs (root riot) you may want to check your medium for bulb mites.
• 6.5-7 shouldn’t be too problematic but I’d try a slightly more acidic feed and observe for effect
• 71F seems a bit cold- relative to the light intensity. Growing a plant is a bit like building a fire, if you add too much of something before the fire/plant can consume it then it chokes it out.
• How did you get that vpd value? Just curious. Also, nighttime temps? The 71F with 61%RH has me wondering about your nighttime dewpoint a little.
She’s squinting a little but not necessarily mites. I think the OP on this thread had mites but yours, not so sure. There’s a lot of unknown variables. Hope things iron out for ya ☆
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@Cheebachiefextracts
Since there’s only 1-2wks till chop I’m switching to plain water and see what happens. This is the first “ultra frosty” strain, and middle and bottom leaves still look normal (they don’t frost). The very bottom leaves are starting to self consume and fall off, so I know I’m close to the finish.
Pot temp is 65-70F since it’s a small tent. Hard to warm things up where they are.
Thx for the good advice.
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@Shieskebab
Foxfarm happy frog. I’ve had good results previously in the 2gals since the area is small. I probably shoulda vegged for only 3 weeks.
Temps are on the low side, but I just have to deal with it. Can’t adjust because of the location. As for nitrogen they only get 1ml of Grow per gallon of solution. I don’t water till runoff, just enough to dampen thoroughly. PH is 6.5 and TDS is 750-800 so I don’t build up. Once a week I skip a day or two so I don’t rot anything. I’m switching to plain water since they’ll be ready to chop in 2 weeks.
They’re clones. They get aero-cloned for 2wks till they show decent legs, then transplant into 20oz Dixies for 2 weeks (first 2wks of veg) under small LEDs and then the 2gals (wks 3 and 4) under 150-250w HPS (digital adjustable).
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No root pests, I use nematode blend during veg to wipe out any critters and to inoculate the soil.
The soil is all Foxfarm happy frog (organic, soil and mulch/loam based) with a tiny layer of rock wool mini cubes packed at the bottom (for aeration, and wicking up any runoff [rare to runoff since I hand water at the stalk]).
I’m stuck with temps as they are due to location. Never had problems with my other strains, and I love the color change to indicate maturity.
My Temp/RH meters calculate VPD and I shoot for 1.0. Evening temps go down to 60F and RH climbs to 70%, again it’s hard to control due to location.
Thanks for the good input.
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I would ditch the rockwool at the bottom next time. Maybe try hydroton down there. You might be getting salty soggy bottom blues.
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Literally my thoughts as soon as I seen rockwool bottoms. There could be a abundance of microbes and salts causing a issue 100%
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