Vote Now 🏆 for the Grow Awards 2025!

Chat

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

Recommended

Recommended

Grow QuestionsCalmag or not?

Calmag or not?

Steeluk1987started grow question 5 years ago

I'm thinking this little lady might need calmag as new growth looks a little off colour, any opinions are appreciated my tap water is around 60-65 ppm this is my first time in just Coco + perlite, so should I add calmag to my schedule? Many thanks in advance

Steeluk1987

Solved

Leaves. Color - Yellow

likes

Bloombusteranswered grow question 5 years ago

Привет, брат! 👋 Ты можешь добавить cal/mag 1ml/l для осмоса воды, или 0,5ml/l для водопроводной или жесткой воды! 👆 Не переживай по поводу цвета нового роста! Новый рост всегда светлее чем уже выросшие листья! 👌 Удачи, братан! ✊😇

1 like

Complain

Selected By The Grower

Inganjawetrustanswered grow question 5 years ago

When growing in coco/ pearlite you will need to add cal mag

1 like

Complain

WildeWeedanswered grow question 5 years ago

Cal/mag should be in every hydro/coco grow. I personally use 2ml per gallon. Works beautifully for me. I use it the whole grow. Do me a favor and don’t select this answer though. I don’t wanna deal with the grower of the month fiasco. Just trying to help. But this works, I know because I do it. CaliMagic to be exact.

1 like

Complain

Similar Grow Questions

Solved

What deficiencies?Anyone can pinpoint what deficiencies I have here? 10 Days from transplant and my plants are lime green in color. Growing in coco

Leaves. Color - Yellow

Plant. Too short

5 years ago

3

3

Solved

Leaves discolouration I have noticed that a couple of leaves on 2 of the plants are getting yellow spots, the only thing I’ve done differently was that I gave the only plain water without nutrients for 2 days, anyone knows what could it be ? Thanks

Leaves. Color - Yellow

5 years ago

1

3

Solved

Plz help Hi need help please. 7th week super lemon haze autos not sure if need cal mag or if it has too much nutes or lockout, idk I'm stuck. Thanks in advance.

Leaves. Curl down

Leaves. Color - Yellow

5 years ago

5

Solved

Yellowing fan leaves Larger, older fan leaves turning yellow slowly. Rest of plant still doing great. Also, leaves are reaching for the light. Is this due to maturity? Or might something else be going on?

Leaves. Color - Yellow

5 years ago

1

1

Solved

7 week slh auto help plz yellowing leaves rust spots Hi need help please. 7th week super lemon haze autos not sure if need cal mag or if it has too much nutes or lockout or if they are just not getting enough light through canopy idk I'm stuck. any insight guys? Thanks in advance.

Leaves. Color - Yellow

5 years ago

3

Solved

What is happening to the leaves?I have 1 plant in soil (very green) and the rest of them in coco (getting lighter green) I'm doing wrong with the coco? they are 3 weeks old and feed them with ph 6.2 I've given it nutrients only once, today I have to water them again

Leaves. Color - Yellow

Leaves. Color - Pale

5 years ago

1

2

Solved

leaves wither Hey, guys. I want to know what's wrong with this leaf. Is it a serious problem?

Leaves. Color - Yellow

5 years ago

2

3

Solved

Yellowing leaves Hey guys, sorry for bothering so much but a few of my leaves are getting all yellowish and as you can see from the photo prob dying. What can I do? And what's the problem? Thanks a lot!

Leaves. Dropping off

Leaves. Color - Yellow

5 years ago

1

1

Solved

Am I taking the correct steps?I think this is due to a combination of overwatering (1l per 24 h in 60% Light-Mix, 30% coco, 10% perlite) and possibly overfeeding (used close to recommended dosage). I have let her dry out for almost 2 days and today watered 0.5 l plain water ph-ed to 6.5. What do you think?

Leaves. Color - Yellow

5 years ago

5

7

Solved

yellow leafs on one plant i have two plants, leafs on 2nd plant slowly go yellow, any ideas?

Leaves. Edges burnt

Leaves. Color - Yellow

5 years ago

3

3

Solved

The leaves have yellow spot on the blade its a small one though. Is it fine?

Leaves. Color - Yellow

5 years ago

2

2

Solved

Auto flower yellow leaves removal Zkittlez auto by fastbuds: They’re on day 34from seed and now has some yellow leaves and yellow fan leaf, should I remove them?

Leaves. Color - Yellow

5 years ago

1

1

Solved

Plants Yellowing Mid/Late flower hello! So my plant became yellow during the few days, more at the bottom about 10. Does someone know what the cause is ? The buds are beginnen to progress the most this days they made about 80%! Thank yoz happy growing

Buds. Other

Leaves. Color - Yellow

Feeding. Other

5 years ago

2

Solved

What can be? Autoflower week 7

Leaves. Color - Yellow

5 years ago

1

1

Solved

What should I do next?Was reading 1870ppm at 5.6 so i flushed 20L water threw till I got 6.3ph and 950ppm and let dry. Feed the other day 4L at 50% nutrients strength 840ppm and is seems it's gotten dramatically worse since then. Before it was very slowly getting worse. Worse at the top now too.

Leaves. Tips - Die

Leaves. Color - Yellow

Leaves. Other

5 years ago

5

8

Solved

Hey guys, so my plant is now end of week 4, can you tell me how she’s going? Why are my leaves like that?

Leaves. Color - Yellow

5 years ago

2

Solved

Weird burn Thought I had a calcium deficiency but now I’m not so sure. Could have got a bit too much direct sun out of the tent. Any ideas on this ?

Leaves. Edges burnt

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5 years ago

1

1

Solved

Cosa può essere?Ciao ragazzi cosa può essere? Grazie mille

Leaves. Color - Yellow

5 years ago

1

1

Solved

Please help! What am I doing wrong? I’m a first time grower My leaves were burning and now I know that I am burning it with nutrients cause my soil already got nutrients. I’m only using water now but now they are turning yellow and the big leaves have spotting. What’s the problem now and how can I fix it?

Leaves. Color - Yellow

Leaves. Other

5 years ago

2

Solved

Please help :(Can anyone please tell me what deficiencies I have here ?

Leaves. Color - Yellow

Leaves. Other

5 years ago

2