The Grow Awards 2025 🏆 
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Is that not enough calcium?
BlueSugarLeafstarted grow question a year ago
How can I recognise that it is only a calcium deficide? The plant is also the largest and the only one with such deficiencies. Could the plant also be lacking manganese or magnesium and what can I use to compensate for this? Are pests or diseases excluded?
likes
m0useanswered grow question a year ago
Does look to be beginning of calcium issues forming.
BioBuzz does not recommend anything under 6.2PH for their feeding regime. I'd lower your feeds and keep up with the CaMg supplementation. When growing in soil I find its best to feed once a week and water the rest of the days, especially if your not getting any runoff with it. If you are getting a bit of runoff, then it might be time to get a bit more and prevent the salts from building up in the medium.
https://www.biobizz.com/wp-content/uploads/2020/03/Nutrient-Schedule-EN-2020.pdf
Their feed chart.
https://420life.com/wp-content/uploads/2021/10/Marijuana-Leaf-Deficiency-Chart-scaled.jpg
A nice leaf chart
Good Luck!
Similar Grow Questions
Solved
1Right_Angle
What causes these colour smearsJack Herer outdoors.
None of my grows have presented a colour smear on the leaves, as this example shows. Left & Right of my hand shows 2 leaves with a colour smear on them. Any ideas or recommendations?
Thanks Gang !!Leaves. Color - Mottling
4 years ago
2
2
Solved
maelxich
What went on here??This is an Orange Sherbet I grew in Happy Frog with the FloraGrow series. I harvested early because I thought the plant was dying, and couldnt seem to stop it by flushing. Does this look normal for a plant being flushed out? Should I have waited?Leaves. Color - Mottling
4 years ago
1
1
Solved
Nufcsniper
New plant leaves has mark on it need helpGone in to tent this morning and some plants showing these signs on leaves . Only second time being fed nutrients.
This morning I’ve just gave them water incase it’s nutrients causing problem. Temp is 20 to 25 Celsius as it’s hot weather here at the momentLeaves. Color - Mottling
Plant. Other
4 years ago
2
2
Solved
Thebush
Can anyone help I think I might have a cal mag problem.Week 8
Leaves. Color - Mottling
4 years ago
3
2
Solved
deckeron73
Brown spots and yellowing leaves.I’ve just started to get these brown spots and yellowing leaves on the top leaves of one plant. Not sure what it is, potassium or calcium deficiency. Soil ph is 6.35. Water with regular nutrients at a ph of 6.5.Leaves. Curl up
Leaves. Color - Mottling
4 years ago
1
1
Solved
AutomaticallyDank
Discolouration of some leavesIs the colouration of these leaves someone to worry about? She’s a young, 2 week old Wedding Cheesecake auto and I’m new to growing and just want to make sure she’s ok! She’s growing in a 70/30 split of coco and soil and has only been fed water so far! Is it nute time?Leaves. Color - Yellow
Leaves. Color - Mottling
4 years ago
7
3
Solved
IbeBryBry
Ca,Mg,Fe,Cu,ect deficiency?If anyone can see the third or fourth picture there is a decent shot of a deficiency. It's some immobile nutrient like Ca,Mg,Fe,Cu, ect. I just can't figure it out, been supplementing with CalMag fog almost 2 weeks? Any suggestions? Possibly Cu deficiency?Week 12
Leaves. Color - Mottling
4 years ago
1
3
Solved
indoorontario
Weird spotsCan anyone identify the spots on the leaves? Not sure I've ever seen spots like these.Week 3
Leaves. Color - Mottling
4 years ago
1
1
Solved
bSandersWitASteelChair
Leaf Spots, weak color, and leaf ripplePlease help me identify possible causes of this: small spots on leaves, minor color fade (not burn) along edges, and strange 'ripple' effect.
A user commented that he thought my plants looked deficient but hasn't elaborated further yet.
What might this be? Multiple issues?4 years ago
1
3
Solved
CannaTrope
Calcium, lock out?Hello, it looks like calcium, P, or K issues. Maybe pH lock out. I flushed last week and followed with nutes. Likely last nutes this week followed by a week or two of flushing before harvest. Please look at leaves and let me know what I should do as I end off this plant.4 years ago
1
1
Solved
masterofsmeagol
What's the issue with this leaf?Can anyone help identify the issue on this leaf. Dreamcatcher is the strain and I can tell they were a reveg. It was root bound and I thought it was an issue with the roots. After transplant outside and sprayed with my IPM the plant has recovered but still has a few like this?Week 14
Leaves. Color - Mottling
4 years ago
5
2
Solved
DrGreenThumb24
Leaf issueGot an issue with some leaves turning this colour. Anyone got any input? We are nearly 7 weeks in, growing in compost and only feeding 1ml/ltr.
I’ve also attached a picture of the whole plant.
Leafs at the bottom seem to be turning, the ones up top all seem a good colour.Leaves. Color - Mottling
4 years ago
2
Solved
MicroPlant
Brown dotsWhite Widow Auto RQS
9 weeks old
Third grow. My plant started making brown spots one week ago. Today, the problem continues. I feed my plant with Pelargon Terra Bloom, sometimes add Pelargon PK13-14. I don't control ph level, but previous two plants don't have this problem.Leaves. Color - Mottling
4 years ago
1
3
Solved
T3rMiNaToR3
Splotches on leaves and green soil tingeWhat do I do about this? Splotches on three leaves total, two different fans, soil has green tinge.Week 3
Leaves. Color - Mottling
4 years ago
4
4
