The Grow Awards 2026 🏆

Back to Grow Questions

Is this a calmag problem?

Slickchigdogstarted grow question 3mo ago

What problem do i have? Is it calmag? Help please. I grow in lightlix biobizz and with biobizz fertilizer

Slickchigdog

Solved

Leaves. Color - Black or grey

likes

Pi_growinganswered grow question 3mo ago

This is not just cal mag. How much watt led used How much cm from plant and how much %? Did you use 100% of shema on every watering?

1 like

Complain

Selected By The Grower

Similar Grow Questions

Solved

I keep loosing leaves to some sort of nasty necrosis. It affects leaves at all levels, small and big randomly. I had to remove a lot of dying foliage At first it looks like a asymmetrical spot of leaf starting to thin out to lighter color then tissue dries and turn black. I have high runoff EC3.3 and I blame Easy boost pellets because I only add rootjuice 1ml/L and sugar royal 0.5ml/L to my water. What is it and how I fix it?

Leaves. Tips - Die

Leaves. Color - Black or grey

Feeding. Deficiences

1y ago

5

5

Solved

IWhat does the tree say?What does the tree say . Am I over-fertilizing?

Leaves. Color - Black or grey

3y ago

5

4

Solved

which deficiency?what deficiency does this look like? (specifically the plant with the yellow tips,blackish leaves,and brown spots on lower leaves) ph is around 5.9 but also i know my meter is probably not accurate. i thought i was underfeeding if anything,did have root rot.

Leaves. Color - Black or grey

5y ago

4

3

Solved

Leaves burn Hi! Is this nutes burn? Damage is on the upper/middle part of the canopy on very few leaves, but many more have black tips. I’m puzzled because during veg I was feeding the plant higher ppm than now and never had a problem!

Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Color - Black or grey

5y ago

2

Solved

Yellow leaves with grey/dark outline I have some yellow leaves with grey/dark outline. Do you know the cause? Could be the humidity level too low? or K deficiency?! I'm not so sure about the last one. Help me guys please.

Leaves. Color - Yellow

Leaves. Color - Black or grey

5y ago

2

3

Solved

Is this sign of nutrient lockout? I have moved her to a bigger pot now, that said I’m worried I’ve been testing my PH wrong, I uploaded a pic (day 26) is she starving? Up til now I haven’t fed her anything but water

Leaves. Color - Black or grey

6y ago

2

2

Solved

What leaf problem am I dealing with?Fan leaves are turning black from the inside to outside. What's going on here?

Leaves. Color - Black or grey

4y ago

3

4

Solved

My dwarves are sick, issue with leaves Issues with my dwarves leaves, can you help me to identify them ?

Leaves. Color - Black or grey

4y ago

4

10

Solved

Black growth seedling One of my 10 day old purple punch seedlings has some black stuff on its new growth in the center. My older PP had it too and she’s big now and doesn’t have it anymore.Still is this anything to be concerned about?

Leaves. Color - Black or grey

6y ago

4

Solved

ist das sclimm Kennt sich wer damit aus und kann mir sagen ob das schlimm ist? das ist mein erster grow und nur diese pflanze hat auf ein paar blättern diese punkte danke schonmal im vorraus

Leaves. Color - Black or grey

2y ago

5

4

Solved

What kind of Bug?Hello, i have these grey/silver spots on a leaves. I also discovery 2mm long and thin white bugs without wings mostly on top of leaves. But i can not determine what kind of Bug it is. Any ideas?

Leaves. Color - Black or grey

4y ago

3

3

Solved

Dunkle Flecken auf den Blättern.Moin.. Bei einer meiner White Widow kommen seit Tagen dunkle Flecken auf den Blättern und seit heute sind auch die ersten Flecken auf einer Blue Dream.. Kann mir einer sagen was da ist und wie ich es weg bekomme? Betroffene Blätter entfernen hat nicht geholfen.

Leaves. Color - Black or grey

5y ago

2

1

Solved

Nutrient Burn ?Hello, can some one Tell me whats this is ? only one of four plants had this problems im watering when its dry , 2.8-3.3L

Leaves. Color - Black or grey

4y ago

3

4

Solved

Black Leaf Does anyone know what's this? I just transplanted it, yesterday, and one of the leaves is getting black and smaller.

Leaves. Color - Black or grey

5y ago

3

2

Solved

Leaf color. Day 14.The coloration on my first leaves is worrying me. First grow. I really don't want to stunt her. G&B potting soil, filtered soft water, Myco+ in my water, 100w AC infinity Ionboard.

Leaves. Color - Black or grey

3y ago

3

1

Solved

Пятна на листьях и сворачиваются. В чем проблема?

Leaves. Color - Black or grey

3y ago

2

4

Solved

Dunkle Flecken auf den Blättern.Moin.. Bei einer meiner White Widow kommen seit Tagen dunkle Flecken auf den Blättern und seit heute sind auch die ersten Flecken auf einer Blue Dream.. Kann mir einer sagen was da ist und wie ich es weg bekomme? Betroffene Blätter entfernen hat nicht geholfen.

Leaves. Curl up

Leaves. Color - Black or grey

5y ago

1

2

Solved

Week 2 flower.Buds turning black Buds and leaves under are turning black, any advice? Something to worry about?

Buds. Other

Leaves. Color - Black or grey

3y ago

3

2

Solved

Black spots and light green leafs Anybody knows what the black spot in the new leaf grow in center is.never seen it before.also very light green leafs with 2.i use light mix and never had this issue before.use rain water.

Leaves. Color - Yellow

Leaves. Color - Black or grey

4y ago

3

4

Solved

Leaf discoloration - light and dark splotches Hello! Any ideas as to why my leaves have splotches of discoloration? 😅 It appears that one leaf has light 💀 patches while the other leaf has dark. 👹 Thanks for your time! 🙌

Leaves. Color - Yellow

Leaves. Color - Black or grey

6y ago

2

3