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

Back to Grow Questions

Are the spots because I had high ph levels when th...

Eighty8Specialstarted grow question 6 years ago

Are the spots because I had high ph levels when they first started?

Solved

Leaves. Color - Mottling

likes

DILLIGAFanswered grow question 6 years ago

@Eighty8Special HI mate yes the spots are from Ph flucuations Nothing to be concerned with as long as you keep that ph relatively stable Good luck

1 like

Complain

Selected By The Grower

Similar Grow Questions

Solved

Rusty-brown markings coming out on lower leaves.Question re-do with better pics. Rusty-brown colour leaves, starting on older growth. Theres a few white hairs starting to brown, lower on the plant. No hermi sacs found pH was too low for 2 H2O’s last week. Re-cal’d tester and got strips to compare. Runoff back to 6.3 from 5.4

Leaves. Color - Mottling

25 days ago

2

3

Solved

Weird leaves The leaves of my plant look strange, I'm not sure if it's CalMag or something else. I recently overfertilized the plant a little..... I am also fighting tripes on the plant at the moment Could it also be the PH value? Thank you :)

Leaves. Color - Mottling

Leaves. Other

2 months ago

2

Solved

Cant figure this out Any input on this issue?!?! Can't figure out problem i keep facing. Starts in flower around week two. Auto in soil only fed once and added fox cal mag a few times.

Leaves. Edges burnt

Leaves. Color - Yellow

Leaves. Color - Mottling

2 months ago

12

11

Solved

Nährstoffmangel?Hallo, habe ein Problem bei meinem grow.Bt33Habe 3 Stecklinge in 13l Topf (FEM Mimose, Gorilla ,Wedding) Zelt : 120x60x180 Lampe :Sanlight evo 4×120 (265w)100 % 45 cm Wasser 12l alle 3 Tage calmag+Bittersalz+algamic+activera Dünger Ghf Bloom Calmag+Phosphormangel glaube ich?

Leaves. Color - Yellow

Leaves. Color - Pale

Leaves. Color - Mottling

3 months ago

2

1

Solved

What is going wrong?Last few days spots are showing on the leaves and growth has become less. Any ideas what it can be? Feeding 3ml alga grow per 1,5l each time i water them.

Leaves. Color - Mottling

3 months ago

4

Solved

Hydroponics, i need a second or third pro opinion. Just a Deficiency? bad pH? (I alreadt did a partial water reservoir change tho)Yoyoyo! If someone of knowledge could help me here, I would be grateful So I think it's a Magnesium deficiency, caused either from my too low pH (5.2) or too much CalMag (only used 1,5ml on 10L) I gave a more in-detail description on my diary. lower leafs are "crispy", not smooth

Leaves. Color - Mottling

3 months ago

6

4

Solved

Manchas en hoja Hola! Aparecieron estas manchas en una hoja de una GG#4 de zamnesia en su quienta semana vegetativa. No es algo que me preocupe, ya que la planta tiene una apariencia sana y crece vigorosa. Pero nunca vi este tipo de manchas y me gustaría saber su posibles motivos. Un saludo!

Leaves. Color - Yellow

Leaves. Color - Pale

Leaves. Color - Mottling

3 months ago

3

4

Solved

Phosphorus Issue?Slurricane is having a phosphorus issue and not drinking water as fast after transplanting. I’ve been feeding cal mag every water and thinking it’s a root zone issue. Should I apply stop watering and apply a follar feed of 3 part general hydro nutrients?

Leaves. Color - Mottling

3 months ago

3

3

Solved

Interveinal chlorosis and dead spots on leaves, deficiency?This started appearing about a week ago, after I watered until runoff with plain water. It's on a couple of leaves higher up both plants and seems to be progressing. I am feeding advanced nutrients Grow Micro and Bloom but have been using very low doses, like 1ml/L.

Leaves. Veins - yellow between

Leaves. Color - Mottling

5 months ago

6

3

Solved

Leafseptoria, ore something else!?Is this Leaf-Septoria? Had the small spots since a few days (looks like they don´t get really bigger) but some leafs start to die like picture 2. looks to me a bit like calcium-deficit, or i´m i wrong?

Leaves. Color - Dark-brown

Leaves. Color - Mottling

7 months ago

4

4

Solved

Normal or should I be careful?🤔First time I see these little dots on the leaves, can anyone identify them or is it nothing to worry about, as I'm thinking? 🧐🤔

Leaves. Color - Mottling

8 months ago

2

Solved

light spots 3 week, light spots appeared on some leaves, the plant grew normally, and there seemed to be no other problems, what is it? Thank you

Leaves. Color - Mottling

8 months ago

2

2

Solved

Root rot or pH imbalance?This blueberry muffin (f) plant was doing well until last week when it started deteriorating. Its grown on a mix of cocopeat, vermicompost, perlite mix and fed on compost tea and cal-mag mix. I might put it down eventually but I checked the pH and it was 5!

Leaves. Edges burnt

Leaves. Color - Pale

Leaves. Color - Mottling

8 months ago

4

2

Solved

moisture I have a humidity problem. It's usually between 75 and 70. I want to buy moisture resistant seeds from the region I live in and I am thinking about what I should not do to overcome this problem. I started the new 2nd wind blower, hopefully it will be enough.This is my first prod

Buds. Other

Leaves. Color - Mottling

9 months ago

5

3

Solved

Yellowing cause?What could this yellow and brown spotting be on the uppermost leaves? Also the curling? They are autos, i am giving them half dose of bloom and phospherous nutrients, as well as half dose cal-mag, temperature isnt overly high, watering every 2-3days until runoff.. bit confused

Leaves. Curl up

Leaves. Color - Mottling

10 months ago

1

1

Solved

Why do my plants only have that light greenish yellowish look at the top and why is one of my plants also having those sick leaves at the bottom?2 of my 3 plants are a bit yellow-ish at the top since about a week. Plant 1 also had a couple of sick leaves at the bottom that I did remove. Those leaves had brown/dark spots, felt dry like paper, had very purple stems and did smell more like hay. More info in my report.

Leaves. Wilting

Leaves. Color - Yellow

Leaves. Color - Mottling

10 months ago

5

3

Solved

Calmag or Potassium deficiency Starting to show hard yellowing on plant #2 looks like it can be calmag Deficiency or Potassium Deficiency. I gave them a bit extra calmag a few days ago and it seams like things are not improving too much.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Leaves. Color - Mottling

a year ago

7

3

Solved

Brown Spots on Leaves I’m noticing some light brown spots on my leaves. After researching it seems that it was either 1) Manganese deficiency 2) calcium deficiency or 3) overwatering. I don’t think I’m overwatering. It could be the nutrients but would like input!

Leaves. Color - Dark-brown

Leaves. Color - Mottling

a year ago

5

3

Solved

Is that not enough calcium?How can I recognise that it is only a calcium deficide? The plant is also the largest and the only one with such deficiencies. Could the plant also be lacking manganese or magnesium and what can I use to compensate for this? Are pests or diseases excluded?

Leaves. Color - Mottling

a year ago

1

1

Solved

Is that not enough calcium?How can I recognise that it is only a calcium deficide? The plant is also the largest and the only one with such deficiencies. Could the plant also be lacking manganese or magnesium and what can I use to compensate for this? Are pests or diseases excluded?

Leaves. Color - Mottling

a year ago

3

3