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Back to Grow Questions
Excess or lack of nutrients?
Willyweed10
started grow question 5y ago
the older leaves are not dark green but light green with burnt tips and sunburn spots. use of light mix plagron with bloom algae. 1.5 ml per half liter of water for two times a week and once only tap water.
Solved
Leaves. Color - Yellow
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CRiSPrGrow
answered grow question 5y ago
that's simple calcium deficiency, you always need cal mag when you grow indoors. hope this helps ! 🚀
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Selected By The Grower
Similar Grow Questions
Solved
KittyKitKat
Lockout or not enough nutrients ?
Hi grow fam, I’m starting to see some slight discolouration on a couple of leaves. I’m wondering if it’s being nutrient deprived or locked out. I am leaning on the side of caution by using GH’s light feed schedule. No signs of root rot inside the bucket
Week 3
Leaves. Color - Yellow
3y ago
3
4
Solved
2020Grower
Who grows in coco?
Anyone grow in coco? My coco been staying wet for well over a week now. Prior to this I would water every couple days, then my plants turned yellow and stopped growing. Someone told me I am watering to often. Pots are still heavy, should I wait till they dry out before watering?
Leaves. Color - Yellow
Plant. Too short
5y ago
2
2
Solved
a_tribe_thats_stoned
Brown and yellow leaves help me get my plant healthy plz
My first time growing and my clone has started to get these brown dots everywhere. Now some of the leaves are dying and it’s getting worse. Online it says it could be mildew or a calcium deficiency.
Leaves. Tips - Burnt
Leaves. Color - Yellow
4y ago
3
4
Solved
Weediz
Light-green stripes in the middle of big leaves
Its my first time growing in coco, and I think the girls is growing more slowly than they should and I have found some light-green stripes on my leaves. Any idea what might be wrong?
Week 4
Leaves. Color - Yellow
3y ago
5
6
Solved
Tbag2020
Yellowing and weird shapes for new growth
My plant is showing yellow and weird shapes for new growth I searched and it looked like calcium deficiancy I tried giving it doses of calmag still no improvement, can someone help please
Leaves. Curl up
Leaves. Color - Yellow
6y ago
3
Solved
Dandamans
Hello, one of my seedlings (In pictures) is looking yellow compared to other plants. Its leaves are also facing up compared to others face down. Was possibility overwatering(New grower) but i have seemed to now corrected that. Is this problem something I should be concerned with?
Week 1
Leaves. Color - Yellow
7y ago
3
2
Solved
Dillsnills
Deficiency or nute excess I have trouble telling the difference?
Is this a deficiency or an excess of nutes my ppm run off is 1030 after a nute feeding the feeding before was 883 ppm, lemon autoseedsmanwk5flowering,I jus got cal mag was going to give it a 1/4 dose 6.6ph, advice input greatly appreciated,telling deficiency or excess is mytroubl
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
1
1
Solved
Unkraut
Defiencies?
It seems i have 2 kind of defiencies 1 plant gets yellow on top 3 plants seem to get red/brown/yellow I checked PH of the soil, looks good -> 6,8 I checked EC of the soil it's 1.8-2.0 I use bio nutriens from biocanna + some cal/mag -> my water has alot of calcium in it in my town
Week 11
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
5
4
Solved
facingbacktofront
Yellow tips. Might be the lights??
I'm thinking of light burn or nute burn. On new growth and just at the tips. Not all the plants, probably on 1/4 of them. Watering 3 ml/gal cal-mag, 0.5 tspn/gal Epsom salt. RO water. 450 ppm. 17 Days into veg. Lights 630watt fluence at 28 inch at 70%. Lowered now to 50% at 35 in
Week 1
Leaves. Color - Yellow
Other. General questions
6y ago
1
1
Solved
Noela
Deficiency/Light Stress Issues
What else can I do? Brown curled tips and spots on older fan leaves climbing up towards main cola. Flushed with pH’d RO yesterday, but was only able to get pH to 6.7, also added small dose CalMag at end of flush. Light wattage has also been reduced by half for the last week.
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
3
3
Solved
maxwell
The worst thing I’ve ever seen
Today my friend send me some pictures and we don’t know what’s wrong, he bought some cuttings few days ago and now they are looking worse! Maybe you know what’s wrong?
Week 12
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Yellow
6y ago
1
1
Solved
UKAgent47
Yellowing leaves
I’ve had a cal/mag deficiency last week which was treated through the week with calmag and no new brown spots, however leaves are still yellowing. Is there anything I can do about this ?
Week 2
Leaves. Color - Yellow
5y ago
1
1
Solved
FBblueberry
Seeing some problems
Hi everyone, i am in week 2 - 3 of flower, and starting to see some problems, is this an excess or def, i am using vitalink hydro bloom, cal mag and shogun sumo boost, i set the tds at 700 ppm, it has fell to 600 in 3 days, but this is in NFT tank gt424, 3 plants in total, thank
Leaves. Color - Yellow
3y ago
1
1
Solved
BudDonis
Yellow canopy Nutrition deficit?
Hi guys can some one help? Is this magnesium or iron deficit? Or smth with roots?(canopy is yellow) Ph of soil was almost 5.8/ 6 smth I had some days a bit heat about 27 /29 degree but the plant next to it looks great they both got some biobuzz grow 4 days ago
Leaves. Color - Yellow
2y ago
3
4
Solved
Wannabean
PH problems
High Again! I still go the soil ph problems (4.7) my diary is fucked up so dont go after this weeks diary. dolomitic limestone?
Week 9
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
GrowingNBlowin
Help diagnose deficiency? Magnesium, Ph?
Magnesium deficiency? PH problem? Other? How should I go about fixing this? Overall the plant looks healthy but the lower/older leaves are starting to get some spots.. I want to figure this out before it spreads..
Week 4
Leaves. Wilting
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
1
Solved
weedoco
Yellowing Leaves in Flowering week 4
is it normal yellowing leaves in this stage ? or its phosphorus def? also some of the tips burned
Week 10
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Stem - Red or purple
4y ago
4
5
Solved
Mattyboyy
Leaves curling upwards and brown spots 10 week autoflower
My plant is worsening and I’m not sure what’s happening. I first thought it was heat stress but it has been a week and is still going down hill. Leaves curled upwards Brown spots on leaves Turning to crisp
Week 11
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
3
Solved
FIRSTGROW2021
Strawberry pie sad
Hi guys so I've got my 1st unhappy girl this one I've is strawberry pie fast buds I have looked and it says ph should always be at6.2 and I usually aim for about 6 and has always been fine or have I gave this one to many nutes my other girls are fine what can I do to save her?
Leaves. Color - Yellow
5y ago
1
4
Solved
DrastikOG
Is this a humidity issue?
Is there something wrong with my Blackberry kush Auto?I have been feeding her PH water and i am growing on soil
Week 1
Leaves. Color - Yellow
5y ago
3
3