The Grow Awards 2026 🏆

Back to Grow Questions

Nute lock-out?

Capo420started grow question 4y ago

My plants appear to be a yellowish color. I am not sure why. I have tried correcting everything I could think of . Run off pH is consistently 5.8. Ppm/Ec is fine. Light is now at 28in/71cm above canopy only at 70% power. Temperature and humidity stay in great range. I don't know.

Capo420

Capo420

Solved

Leaves. Color - Yellow

likes

GMSgrowsanswered grow question 4y ago

Autos... They start their feed from sprout at 200 ppm 0.4 ec. 400 ppm 0.8 ec is the start for photos. 400 is to high for autos to start and being at 533 ppm is to high for this stage of their life. Roots weren't ready for that high a ppm from the start. So right now they should be at 300 to 350 max. Your roots should recover and start pulling nutrients back up and into the plant. Everything else is fine. Once you see some good growth increase 100 ppm every week until you reach 600 to 650 ppm. That's about their limit and your getting close to that already.

1 like

Complain

Selected By The Grower

Similar Grow Questions

Solved

Mg deficiency?Is this yellowing a sign of magnesium deficiency?

Leaves. Color - Yellow

3y ago

12

9

Solved

GardenOfTheRisingSun

Leaves getting a bit yellow What excess or deficiency can this be? My guess is Mg…

Leaves. Color - Yellow

4y ago

1

2

Solved

Yellowing leaves, need guidance! :)I'm having some issues with yellowing leaves at some bud sites and lower leaves. Would be glad if someone could point me in a direction as what to do to help my plants out :) it should be visible in my last picture They got their first feed 2 days ago and were watered Thanks!

Leaves. Curl down

Leaves. Color - Yellow

5y ago

1

4

Solved

First leafs turned to yellow The first two leafs turned to yellow on the SB. Should i cut it down?

Leaves. Color - Yellow

6y ago

3

3

Solved

Leaves turning yellow Leaves are going pale and turning yellow all over the plant. Temp 25c, humidty 35-45 %. Bloom nutrients every second water. Two 150w lights over plant Thought it might be over watering but only giving 400ml now every 2 days - 3 days and still seems to be progressing on the plan

Leaves. Curl down

Leaves. Color - Yellow

Leaves. Color - Pale

5y ago

4

Solved

Why is the bottom two leaves turning yellow. The ph has not changed from 6.8.

Leaves. Color - Yellow

5y ago

1

1

Solved

Is it this or that?My best guess is Overfeeding.. I sat down to try nut it out, but I only guess. What is the deal here folks?

Leaves. Color - Yellow

5y ago

3

2

Solved

Hi fellow growmies, Could you identify my problem out here please? Is it a heat stress or stg. else?

Leaves. Color - Yellow

4y ago

4

4

Solved

Hi growmies i would apreciate it ur opinion Good day guys i have a question about my plants, my question is why my stem turn allmost black but plant doesent show any problem with it , is it genetics or my fault something ? And how they look (ur opinion) i want soon to cut them and to put new ones in bigger pots.

Leaves. Edges burnt

Leaves. Color - Yellow

Leaves. Color - Red or pink

1y ago

3

2

Solved

What is yellowing my little leave ?

Leaves. Color - Yellow

7y ago

4

5

Solved

Problem in 5 Week of Vegetation Now in the 5 week of vegetation. The plants are Tropical Gelato cuttings. Everything was great until recently. They looked great. After another light fertilization, the condition of the plants continued to deteriorate. Soil PH value is between 6 and 7. Can Someone help?

Leaves. Curl down

Leaves. Color - Yellow

1y ago

1

Solved

Déficit y hojas muertas Hace unos días le empezaron a salir estas manchas en varias hojas e incluso algunas se secaron por completo. Estoy siguiendo la tabla de cultivo de biobizz para un light mix, alguien sabe que podría ser? Gracias

Leaves. Tips - Burnt

Leaves. Dropping off

Leaves. Color - Yellow

4y ago

2

7

Solved

Hi First time grower. My Gsc's fresh leaves are real light green is that normal? Cheers.

Leaves. Color - Yellow

7y ago

2

Solved

Ganjafarmer420flowers

New growth seems yellow I was wondering if anyone can help me the new growth seems to be coming out really yellowish?

Buds. Other

Leaves. Color - Yellow

Plant. Other

4y ago

3

5

Solved

Oldest leaves turning yellow What could be the cause of oldest leaves turning spotty yellow on 3 week old plants? They got nutritients end of last week for the first time, but not that much.

Leaves. Color - Yellow

2y ago

2

2

Solved

Yellow mottled leaves with burnt edges Help. After months of babysitting my "autoflowering dwarf" it's finally started flowering. In the last week though all the leaves have become mottled and yellow with burnt brown edges. What can I do to save her?

Leaves. Edges burnt

Leaves. Color - Yellow

Leaves. Color - Mottling

5y ago

1

1

Solved

large fan leaves yellowing Not sure if these show nute deficiency or excess, I fed tiger bloom yesterday morning, strong large fan leaves are yellowing and not so much the small finger leaves

Leaves. Color - Yellow

Setup. Strain - Autoflowering

5y ago

2

1

Solved

What is wrong with this plant Can you please tell me what is that? 1,5 Bloom GHE 1 Biobizz BLoom 0,5 Fish MIX 1 Algae concentrate 0,5 revive 1 ml bio heaven 1 ml Bio acti vera 2 drops PRO Bloom 2 ml Cal Mag Bio BIzz HNO3 as acidifier. I bring everything down to 650 ppm and 6,3 pH soil : ALL MIX

Leaves. Tips - Burnt

Leaves. Color - Yellow

4y ago

3

Solved

Deficiencia de mg?Hace unos dias que la veo rara a la planta, con las hojas rizadas y bastante amarillas.

Leaves. Curl up

Leaves. Color - Yellow

6y ago

1

2

Solved

Nutrient deficiency What kind of deficiency these leaves are showing? Can this be lack of nitrogen? I am using a lower amount of BioBizz Grow these days (1ml/L), passing to BioBizz Bloom and Top Max as they are in the middle of the flowering stage. In case, should I integrate with more BioBizz Grow?

Leaves. Color - Yellow

6y ago

3

3