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Back to Grow Questions
Calcium/magnesium
Vps420
started grow question 5y ago
Is that a deficiency of calcium/magnesium?
Solved
Week 6
Feeding. Deficiences
1 like
Tweak
answered grow question 5y ago
What is your growing medium? If you’re growing in soil I highly doubt it’s a cal/mag issue as there is plenty of cal/mag for a grow in most quality soils, more likely you’re Experiencing pH fluctuations in your medium.
2 likes
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Selected By The Grower
sir_isO
answered grow question 5y ago
Vague, though I would probably use calmag...but then, I'd probably also add a bit of sulphur and phosphorus if I have some.
1 like
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OrganicNature420
answered grow question 5y ago
1.0 ml of calmag per 1lt will do it wonders for next week or 2. Then start lowering it 👍🏻🌱❤️🍁
1 like
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Similar Grow Questions
Solved
Dillsnills
Should I remove yellow leaves? I under fed nutes and my ppm in tap water were too high, using distilled now, wait till after recharge or jus remove leaves?
Should I remove the yellow leaves? Pretty sure my tap water is too hard and I underfed on nutes, I gave a dose of nutes yesterday, doesn't seem to be turning anymore yellow, I have realgrowersrecharge coming am watering w that next, remove leaves or wait and see after recharge?
Leaves. Color - Yellow
Setup. Strain - Autoflowering
Feeding. Deficiences
5y ago
2
3
Solved
levensfiets
(for more background, see Week 9 in diary) Am i correct for assuming that when growing in peat moss (supplemented with perlite) i would need a hydroponic fertilizer because this is a soilless medium? thanks ! :)
Week 9
Feeding. Deficiences
6y ago
2
2
Solved
Chronic_Chronicles
Does anyone have advice on determining if you are watering too much or too little??? My plants arent growing too fast and the leaves never look fully awake. Thanks in advance!
Week 3
Feeding. Deficiences
6y ago
7
5
Solved
inhale_exhale
Magnesium deficiency
looked for similar cases in grow questions and now think it’s a magnesium deficiency. I use biobizz Calmag 0.5-0.8 ml/L like in guide. Last week 1 ml/L. but magnesium deficiency does not go away, Question for biobizz users, how much Сalmag can be used before overdose?
Week 3
Feeding. Deficiences
2y ago
6
7
Solved
mck372
mid-flower yellow leaves
Hello! I'm growing my first non-auto, a SkittleZ, it got quite small and the leaves are yellowish,I'd like to know what mistakes I made and what I can do to help her Mars Hydro TS1000 and only BioBizz nutrients. Temp is around 18C at night and 25/26C during the day, 40% hum
Leaves. Color - Yellow
Feeding. Deficiences
1y ago
2
6
Solved
Eagers
Troubled seedlings
Is this nutrient burn? Had what looked like a lack of nitrogen early on, lowest leaves were healthy then quickly went yellow and worked up. Now have fed nutes at 0.7EC (tap water left for 24hrs to 0.28EC) so fed under 0.5. Bio-grow 0.5ml/l bio-heaven 1ml calmag 0.25. Thanks
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
5
9
Solved
THERMICDESERT11
Nitrogen deficiency, light burn? Calcium?? Which deficiency?
Growing organically with happy frog mixed with a super soil concentrate. I water them with spring bottle water, ph at 7.7. Recharge every 10 days. Top dress 2-2-2 dry amendments. No clue what’s going on with this, thought it needed nitrogen. Top dress. Some new growth looks good
Feeding. Deficiences
5y ago
3
2
Solved
GreenLiving
PH Fluctuation Early Signs?
I am worried that I either have early signs of PH fluctuations outside of 6.0-7.0 range or early signs of a calcium deficiency. As you can hopefully see in the picture the tips of the first set of true leave seem to have little spots of discolouration. Any help is appreciated😊
Week 1
Leaves. Color - Pale
Feeding. Deficiences
4y ago
5
3
Solved
SlamFM
Which Deficiency(ies)?
After looking at some pictures and reverse image searching some of the attached pictures. I think it maybe both phosphorus and potassium deficiency.
Week 10
Leaves. Color - Yellow
Setup. Strain - Autoflowering
Feeding. Deficiences
3y ago
6
1
Solved
RI_420
Late Stage Nutrient Issues?
As the plants near the end (last two weeks) should I expect to lose virtually all the larger/medium fan leaves as the plants drain them of nutrients or is that a sign of overall nutrient deficiency?
Week 14
Feeding. Deficiences
5y ago
2
2
Solved
GhettoStyle
Please tell me why the veins of the leaves are so yellow!?
Please tell me why the veins of the leaves are so yellow!? what could it be? zinc block or cal-mag shortage ? pH all the time was 6.3-6.5, EC first was 0.7 today when I saw the yellowness on the leaves I lowered the EC to 0.5
Leaves. Color - Yellow
Leaves. Other
Feeding. Deficiences
5y ago
3
1
Solved
AliceTheMan
Too much fertilizer?
High, i´m a little unhappy about the yellow Leafs. It´s week 5 of Flower, 20 Liter Shoes (Plagron Terra Light Mix), 2,5 Liter Water all three Days with Plagron Terra Bloom 4ml, Sugar Royal and Green Sensation 2,5 ml (like Shedule), Ph 6,2-6,5. What can i do?
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
1
1
Solved
PeppaWutz
Leave issue again :( can somebody help pls?
Does somebody know why this happens and how I can stop it? I had the same issue last grow and this will become worse. Some data: humidity 55%, water temp 21 °C, tent temp day 27 °C and at night 21 °C, EC lowered to 0.7 (befor 1), Ph 5.7 to 6. I grow in a nft system with 100L.
Week 4
Leaves. Other
Plant. Other
Feeding. Deficiences
5y ago
4
7
Solved
RickSanchez
CalMag during a flush?
I was wondering whether or not I should keep feeding CalMag while flushing the plants. I've read a lot about the flushing process but since CalMag is not considered a fertilizer, I am not sure how to handle the deficiency at the end of the grow. Any tips? Thank you guys!
Feeding. Deficiences
5y ago
6
3
Solved
UKAgent47
General health and CalMag advice
Reduced watering to 850 ml and seems to want this every 24- 36 hours. Plant seems to have perked up however still have yellow leaves / brown spots. I’m feeding 0.5 ml calmag per litre , should I continue this? Should I be worried about the state of the plant.
Week 3
Feeding. Deficiences
6y ago
3
3
Solved
secaboy
Deficiency
Does anyone know whether this is related to not enough food or not enough calcium? Growing in DWC PH is 5.8 and ppm is 900 or 1.2 ec she's an auto and has just started to flower, I also have been adding in extra cal mag in each feed and res change. Thanks.
Feeding. Deficiences
4y ago
1
2
Solved
Dillsnills
Dark green leaves on Blue Dream Auto fastbuds, should I jus continue with pH water or mini flush in a couple weeks?
Blue Dream Auto from fastbuds, 16 day's old. Leaves look dark green, I'm thinking it's from too much nitrogen or it's sensitive to nitrogen because I haven't fed any nutes yet. Ffof ffhf mix half and half with perlite added. Should I do a mini flush in a couple weeks? Advice plzz
Setup. Strain - Autoflowering
Feeding. Schedule
Feeding. Deficiences
5y ago
5
Solved
Newbie_01
Primary ( K ) or secondary nutrient ( Ca-Mg ) deficiency?
Hi friends, I would like your opinion. I'm not very worried, there are a few weeks left until the harvest and I think the situation is under control. THX 😇
Week 7
Feeding. Deficiences
6y ago
3
2
Solved
CHILLING_RACOONS
Big problem: burn tips and spot on Leaves
Hi dear friends! Leaves from this VANILLA KUSH are crispy and they aren't "smooth." since last week I didn't gave any nutrients but only ph water. Syntoms may be a calcium deficiency but I don't know if it is the problem. Please, what I have to do to? 🙏🙏🙏
Week 10
Leaves. Edges burnt
Plant. Stem - Red or purple
Feeding. Deficiences
5y ago
7
6
Solved
Naturalist
Regarding the tips Normal or too much Bloom?
I'm dosing at 60% of the feed chart but I'm not sure if I might be ODing the PH, think the LSDs have been yellowing a bit so I've boosted the FP a bit.
Week 14
Feeding. Deficiences
6y ago
1
3