By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Seedling Light-burn or Toxicity
MMSC16started grow question 8 months ago
Hi growers!
Is this Light Burn, or nutrient toxicity from nutrient dense soil?
2 Mars Hydro TS600 lights at 27" from seedling.
PH 6.3 misting soil - RH is 75-80%. - Temp is 77F
No light meter, so I estimate PPFD is in acceptable range despite using 2 lights in 2x2 tent.
Solved
Leaves. Color - Yellow
like
TheHollyweedanswered grow question 8 months ago
You can use alternative a lightmeter app. hold your phone in the hight of your plant. It works not perfectly but better then nothing
Robertsanswered grow question 8 months ago
Light is likely too strong. Seedlings don't require intense light.
1 like
Complain
Organomananswered grow question 8 months ago
Can't see anything wrong..........you are overthinking things.
This is exactly how cannabis seedlings start out.
Misting the soil is pointless, it does nothing.........water properly!
2 likes
Complain
Hashyanswered grow question 8 months ago
It just looks like it's starting life, sometimes you can get funny colours at this age. Download an app for your phone called photone. It uses your screen camera to measure the light.
1 like
Complain
TheUk420Showanswered grow question 8 months ago
Dont look very yellow to me. if its just germinated most will start of yellow then quickly turn green its part of the germination stage just after the shell husk falls off. tbh I thinks its fine I would not worry :) seems to be growing fine :)
1 like
Complain
Similar Grow Questions
Solved
4lbi4
Anyone know what it could cause the yellowing leaves in the gelato?
Week 7
Leaves. Color - Yellow
2 years ago
5
2
Solved
6ix6ix6ix
Yellow and burned top leavesFianal checkup. Inthink its too late anyway as we are so close to harvest but for the sake of gaining experience could anybody make the final diagnosis of what is the reason for the yellowing and burning tips of upper leaves. Untreated early PK def maybe?
Week 10
Leaves. Color - Yellow
2 years ago
1
5
Solved
Spliffing_Around
Yellowing continuesLeaf yellowing continues, is it normal as it’s already the end of the flowering for them ? Can this still be influenced? Previous advice was to raise ph and give N. Yellowing still goes, flushed them today, one yellowing plant was giving ec 1,7.
Leaves. Color - Yellow
2 years ago
3
4
Solved
smower
Листья Желтеют, хотя цвести ещё 30 днейКак вы думаете, это нормально для 4 недели цветения, что у Moby Dick Листья начинают массово желтеть и опадать?
Week 10
Leaves. Color - Yellow
2 years ago
4
Solved
Hongo
Soil pH is surprisingly high. What's the best/safest way to lower soil pH (without eliminating nutrients from dry amendments)Granite Runtz #2's leaves have started to lighten in color & develop rust spots/mottling. Troubleshooting this, my soil pH is in mid 7s; I always pH water to 6.4-5. Will daily watering with ~pH 6.0-2 be enough to lower soil pH sufficiently? I wonder if this also affected growth?
2 years ago
2
4
Solved
DANNYBLUE1
Why is One growing perfect the other is strugglingWhy is one of them doing so well growing better deep green leaves and the other is at least 2 inch shorter and leaves are yellowish. I’ve been feeding them both the same I’ve missed the shoter one of the soil is still damp. I’m guessing nutrient over load so thinking do a flush2 years ago
4
6
Solved
GracelessGardens
Yellow lines on 2 leavesAny clue what this is? About to be week 6 and in flower. I'm thinking the start of nute burn? I gave it bloom boost in the last 3 waterings in less and less amounts. let the soil get very dry before watering with plain 6.2 pH water. Any input is appreciated
Week 5
Leaves. Color - Yellow
2 years ago
1
8
Solved
Chubaka26
Help!I changed the soil, started to give her NPC 6/6/6, and stil not growing, what shel i do?
Leaves. Color - Yellow
Leaves. Color - Pale
Plant. Too short
2 years ago
4
4
Solved
Starplatinumsrealdad
Yellowing and Reddening of older fan leavesI’m experiencing a lot of yellowing that progresses into dark red blotches. I suspected a possible cal mag deficiency but after upping the dose multiple times I’m still having issues. Any recommendations on possible causes/treatments? Temp stays between 74-76, humidity around 60%
2 years ago
5
3
Solved
LokalGrenz
Light green yellowingBarney’s farm amnesia haze is in flower day 84 turning light green yellow I’m using Sohum soil not sure what’s the issue I’m using PH distilled water at 6.5 and I recently used Gaia greens bloom I have another amnesia haze same soil same age no issues like these
Leaves. Color - Yellow
2 years ago
2
3
Solved
laberg
Yellow discoloration againI'm annoyed by having to post another question but oh well. Yesterday evening I increased the PAR from 370 to 400 in center. This morning the top fan leaves were pointing straight up and so I raised the lights a little. I later looked and saw discoloration. Light burn?
2 years ago
1
2
Solved
Babijai
Too close to light? Nute deficiency?Yellow leave with brown spots, what is going on? Showed up really in the last 2 days.
It got a half strength dose of big bloom every other watering, the light was pretty close about 6-8 inches away. I didn’t check on it for 3 days so it grew a bit and was super dry.
Week 7
Leaves. Color - Yellow
2 years ago
11
32
Solved
Katsuny
Leaves are turning yellow during flowering - is this an overwaring issue?About 1,5 week into flowering the leaves have turned yellow, especially on the outside. The leaves in the middle are still oke, lower older leaves are dry. Could this be overwatering or something else? I gave around 1L/day, coming from around 0.5-0.7l/day the week before.
Leaves. Color - Yellow
2 years ago
3
5
Solved
Chubaka26
Yellow leavesShe is auto jack herer feminized, 4 weeks old. It started getting the leaws yellow, what is happening? What should I do?
Leaves. Color - Yellow
Plant. Too short
2 years ago
5
5
Solved
laberg
Iron deficiency?This A.M I treated her with a cal-mag mix due to yellow leaves. Today the leaf showing symptoms "tacoed" a little bit and the tip curled upwards. Same symptom on a few other leaves but only on the tips. Iron deficiency perhaps? PH'd soil on 3 spots: 6.6, 6.18, 6.3. What to do????
Week 5
Leaves. Color - Yellow
2 years ago
1
5
Solved
diabloelnino
Seedling yellow green?? HelpI was wondering on what is causing this? Sprouted today and its this color… help? Im using super coco
Leaves. Color - Yellow
2 years ago
2
9
Solved
Osito
Is it time to flush or wait a week?Hey what’s up grow gang, we’re approaching the final weeks of flowers, but I was curious as to if our grow is ready to be flushed, or if they possibly need another week of nutrients, and also the best flush technique for best results. Thank you for answering in advance!
2 years ago
4
4