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Back to Grow Questions
Calmag issues
Ichabod1905
started grow question 4y ago
Hi all. Just a quick one. Do I need to use calmag on every watering using a sf4000. It's my first time using a led. Thanks for any advice. 👍🏻👍🏻
Solved
Feeding. Deficiencies
1 like
Roberts
answered grow question 4y ago
Depends If coco is present in your substrate. If so then I would use it more often then not coco absorbs cal mag.
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Selected By The Grower
Similar Grow Questions
Solved
CannaMom2
WHY?? Still looks like Calcium Deficiency?? HELP!!!
Can Someone Please tell me what is going on here? I have a detailed diary if you have any thoughts on why it still looks like a Calcium Deficiency. Plant looks healthy except this. First time for coco (bagged & prebuffered), grow dots, and wick bases so I am at a loss.
Week 9
Leaves. Color · Mottling
Feeding. Deficiencies
3y ago
12
5
Solved
forgettenseedling
Leaves getting brown, can someone help me out? What does the plant need?
Leaves. Color · Dark-brown
Feeding. Deficiencies
4y ago
1
1
Solved
Dr_GrThumb
1st time grower - nute burn? Lockout? Potassium def? Light burn? HELP PLEASE
Experiencing some deficiencies/light burn/heat stress. Says SSH likes hot/moist climate. Plants are planted in FFOF Soil, fed them 15oz of nutes yesterday. Using advanced nutrient systems, see above. Light is a SF1000 LED meant for a 2x2 tent. Would that burn them hanging at 20”?
Week 2
Leaves. Edges burnt
Leaves. Color · Yellow
Feeding. Deficiencies
5y ago
6
6
Solved
SkatehouseFarms
Nute burn and yellowing I don’t have a ph pen/meter please help what do I do I’m using mearth coco/perlite and dr earth dry amends and worm castings
don’t have a ph pen/meter all I have is the general hydroponics ph drops I’ve been waterin at 6.3-.6 ph. my plant is having some yellowing nute burn and I don’t know what to do please help the I’m growin in mearth coco/perlite with dr earth 4-4-4 and 3-9-4 flower dry amends help!
Week 5
Leaves. Color · Yellow
Feeding. Deficiencies
Feeding. Other
5y ago
2
2
Solved
MrGreen92
Rusty spots on fan leaves overnight, what is it? ️
Last night I used some old but clean looking wire to bring branches in to the main stems. This morning there's now little orange rusty spots everywhere. Is a soil grow, 6.3 pH used and same run off with Cal Mag every other feed. Taken the wire of at 6am in anger, was it that? 😡
Week 8
Leaves. Other
Feeding. Deficiencies
6y ago
2
2
Solved
Green_Knight
What is the best choice for a reasonably priced, accurate PH meter? I have yellowing new growth.
Feeding. Deficiencies
4y ago
5
7
Solved
CHILLING_RACOONS
NEED HELP! CRUCIAL PHASE
Excess or deficiency? I'm in the crucial phase of buds development, some leaves are getting brown and seems to be burned but I don't know if it is a burn or a deficiency.. On 17/01 I gave 2ml/lt npk 4-8-8 and npk 1.7-0-3 1ml/lt? What should I do? Could someone explain? Thank you❤️
Week 10
Leaves. Edges burnt
Other. General questions
Feeding. Deficiencies
4y ago
3
3
Solved
DieselKush
Deficiency?
What kind of deficiency does this look like to you guys?
Week 1
Feeding. Deficiencies
6y ago
3
3
Solved
WulfBlud
Calcium or Manganese deficiency?
Calcium or Manganese deficiency? Last week had what I thought was early calcium deficiency. Gave it a dose of CalMag but now not sure if it’s still Calcium or possibly Manganese.
Leaves. Veins · Stay green
Feeding. Deficiencies
3y ago
2
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. Deficiencies
5y ago
6
3
Solved
2x2growing
Rust spots
My lower leaves are showing rust spots along the veins. Appears to be a magnesium deficiency but I am feeding cal/mag. I also growing in ocean forest soil. I’m starting to think this is nutrient lockout? I’m feeding a low dose of nutes(250 ppm every few days) soil could be hot?
Feeding. Deficiencies
6y ago
1
2
Solved
coriander
What to do? Leaves are getting worse.
Had some light strain earlier on, but now im leaning toward a deficiency. Been feeding on a low-dose flora series schedule with clean ph water for every other feed. Just had clean water yesterday and nutes 3 days before. Dry out between feeds. Nitrogen? Calmag? Other?
Week 8
Leaves. Edges burnt
Leaves. Tips · Burnt
Feeding. Deficiencies
6y ago
3
2
Solved
iopiopiop
Slow growth
Ive had my plants in veg now for more than two months. I bought them as clones and they have ben through a nitrogen toxicity. Now they are starting to show cal deficits and im not sure how long I have to keep em in veg. I was planning on doing a sog actually but its really slow
Plant. Too short
Feeding. Schedule
Feeding. Deficiencies
6y ago
2
Solved
MarianPazdzioch
Azot
Where's all the nitrogen coming from? I only water with pH 6.5 and I've never added anything.
Week 3
Feeding. Deficiencies
4y ago
2
Solved
RecreationalRoots
Nute Deficiency or New Leaves?!
Thoughts if this yellowing may be nute deficiency? Or are these just new leaves and I am concerned about nothing and I’m babying them since it’s my 1st grow? Both plants are about to be 2 weeks post sprout. Both are in 5 gallon fabric pots with layered soil (FFHF on top of FFOF)
Leaves. Color · Yellow
Feeding. Deficiencies
5y ago
2
2
Solved
Coughy
Calcium deficiency impossible to fix.
I cannot get ahead of calcium deficiency in spite of adding calcium nitrate base with extra cal-mag daily. I just keeps getting worse and worse... any advice? Hydroponic RDWC, day 29 flower. It’s fine in veg, once they hit bloom, can’t keep them healthy.
Week 17
Feeding. Deficiencies
6y ago
4
4
Solved
francisgerald
Is this plant hungry?
Is this plant hungry? It's an autoflower, day 23, growin purely on coco, pH 6.2, feeding off Remo Nutrients (Micro, Magnifical, VeloKelp, Grow, Nature's Candy). I'm currently feeding her with 2ml/l, 600ml a day, with a 20% runoff.
Feeding. Deficiencies
5y ago
1
1
Solved
OrihimeDelta
What causes hydro Ph fluctuations early in the grow?
What causes dramatic ph fluctuations in hydro conditions so early in the grow, and how can I mitigate it? I have hard water, so I know that’s part of the issue (I tried to install a RO system recently and failed miserably). Other than frequent testing & additives, what can I do?
Week 2
Other. General questions
Other. Other
Feeding. Deficiencies
6y ago
1
1
Solved
doobieashtray
Help. White widow Auto day 7
I am curious about this white widow auto seedling. This is day 7. Seems to be losing a little color, but is still growing faster than the other 2 seedlings I dropped. Any suggestions on this? I have only been watering with distilled water. I have not fed any nutrients yet
Leaves. Veins · Yellow between
Feeding. Deficiencies
5y ago
2
Solved
YellowGrow
Leaf marks, LST and deformed.. is good, no? :D
Expert, I need your advice! ;) 1.marks on leaves.. I've spotted some brown marks... is sign of juice burning? :P 2.there's another mark.. more dark color.. maybe was me managing them.. :P 3.LST.. was not good, right? :D 4.the little deformed.. should I keep or remove it?
Week 5
Leaves. Other
Plant. Other
Feeding. Deficiencies
6y ago
1
1