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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. Deficiences
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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
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. Deficiences
3y ago
2
Solved
jbirdstheword
Burn, deficiency or other?
I’m completely stumped as to why my one plant is showing signs of deficiency or burn. Used the exact amount of fertilizer per plant. One plant is fine and the other looks terrible. I used a half dose of cal mag and it seems to have stopped but is not drinking or looking better.
Week 7
Leaves. Curl down
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
3
2
Solved
John_Federic
What deficiency / excess is this?
Killua feels alright but the tip of some of his leaves looks like this (see photo). What could it be? Currently feeding her with 1 mL/L BioGrow, 6 mL/L BioBloom, 3 mL/L Top Max. Never gave him anything different. Also, big fan leaves are healthy, only some leaves randomly are ill
Feeding. Deficiences
4y ago
6
3
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. Deficiences
Feeding. Other
4y ago
2
2
Solved
SweetJB
What am I facing? Plant is getting worst everyday, and I can't find the reason why. Thought it was a calmag def, but now I don't really now.
When I switched to flower, I started watching some rusty spots on the leaves of the gelato. After doing some research, I thought I was facing a calmag deficiency, and starting adding some calmag. Plant is getting worst, I flushed the roots and water between 5.8 and 6 as canna ask
Week 10
Leaves. Edges burnt
Feeding. Deficiences
6y ago
5
3
Solved
CastlesMadeOfSand
Light schedule/curling tips
Hi guys I w move her outdoor the next month- when here in italy we have 15h 30m day length.I don't know if reduce hours slowly when i have to move her outdoor..any suggestion?Then she start to shows some curling tips on the leaves.. It isn't overwatering Maybe n deficiency or tox
Week 3
Leaves. Curl down
Setup. Lighting
Feeding. Deficiences
4y ago
1
1
Solved
buddhi_coop
Leaf Deficiency
What’s going on with my leaves? Looks like the start of a deficiency.
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
1
1
Solved
JLive3asy420
Seedling Help
P3/P4 in my active grow seem like they are missing something. Any ideas? PPM of 300 with SLF100, some Great White, and Recharge in 5 gal of dechlorinated water, PH 6.47. Might want cal-mag?
Week 2
Setup. Seedling
Feeding. Deficiences
4y ago
1
Solved
soflo
Y’all WTF did I do
They burnt so I found out I gave too much nutrients. Now I have only water cause my soil has nutrient but this shit fucked up. Do I need some iron or something? What do I add to my water that won’t cause over nutrients burn too 😭 my outside plants are doing amazing without anyth
Leaves. Edges burnt
Leaves. Tips - Die
Feeding. Deficiences
5y ago
3
Solved
laberg
Possible toxicity or deficiency?
I saw this on one of my bottom leaves this morning. Hopefully someone can give insight of what it might be. I'm concerned that it is phosphorous deficiency. I didn't notice it a day ago, but I wasn't looking closely. 2 days ago I watered her (540 mL, 1/4 tsp nutrients). Thoughts?
Week 3
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
5
5
Solved
Goenndalf
Rusty Leaves
3 upper fan leaves have "rusty" brown spots on the upper side. Hard to spot, hard to capture on camera. I also have slight "clawing" on many of the upper leaves. Mg/Ca lockout because of nitrogen toxicity possible? Doesn´t seem to be fungi, as there are no spores to rub off.
Week 8
Leaves. Curl up
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
2
2
Solved
BRLGrow
Lime green soft stems
Hi there What’s could be the stems light lime green, they a soft as well. Candy kush autoseeds 42 days 11l pot , 400w HPS 18-6 Biobizz bloom ando top max 3ml/l Biogrow 1ml/l Water 3 l every 48hrs They also a bit droppy
Other. Other
Plant. Stem - Weak
Feeding. Deficiences
5y ago
1
2
Solved
Rasta666
Help
What is it? Phosphorus deficiency? What to do with it?
Week 8
Feeding. Deficiences
3y ago
2
Solved
Vazky
Phosphorus stuff at home?
So I have phosphorus deficiency mid flower and I'm basically broke and no shops are open, is there anything I might have at home or cheap at grocery store I could use? None of the fertilizers I'm using have high phosphorus content
Feeding. Deficiences
5y ago
2
3
Solved
kizdog
Small orange/bronze spots?
So some of the leaves in the middle/top of my plant are getting these orange/bronze spots. I’ve seen examples of a few different issues that looks similar. Can anybody tell what’s going on here? Happy to give more info
Leaves. Other
Other. General questions
Feeding. Deficiences
4y ago
1
1
Solved
Reedius
nute burn or lack of?
Hey guys, Is it nute burn? Or lack of nutes? I gave them nutes on the 25/04. - 1,5 litres of water with 0,5ml of biogrow, 1ml of biobloom and 2ml of topmax by biobizz. I had given them 1ml of biobloom and 1ml of topmax on the 22/04. Soil is from compo sana. Thanks for the help
Leaves. Color - Yellow
Leaves. Color - Dark-purple
Feeding. Deficiences
6y ago
3
2
Solved
Scilef
Help me to diagnose my plant
What is this? I had a huge problems with a feeding, so it may be everything, but I want to know what's disease is this and what can I do. Please, read the diary to get more information about the past weeks. Other symptoms: - Curled down leaves - Burnt tips - Leaves dropping off
Week 10
Leaves. Other
Feeding. Deficiences
2y ago
5
6
Solved
The_Dank_Review
Zinc deficiency
I’m 99% sure I have zinc deficiency. I’ve been watering at a ph of 6.5. Tested my run off yesterday and it’s at 6.3. This is a sensitive plant and this issue should be solved with a 5.5 ph watering. Should I wait for dry soil in a few days or hit it up now? Watered it yesterday.
Week 7
Feeding. Deficiences
5y ago
4
Solved
LoganatorDude
I keep seeing this reddish or bronzish discoloration in the new growth when it’s just starting. Almost a purplish color at times. What kind of deficiency could this be? Or something else entirely?
Week 11
Feeding. Deficiences
3y ago
2
2
Solved
El_Bottanico
intervenal discoloration, organic grow
Gave her enzimes last week, maybe they were too much or some nutrient lock out due to a somewhat excessive fertilization (too much vermicompost) Think I will go on with plain water to the end I think maybe the problem will sort out itself or wont degenerate too much. Any advice?
Week 5
Leaves. Veins - yellow between
Feeding. Deficiences
4y ago
1
2