The Grow Awards 2026 🏆 
Deficiency help/fix?
TheProfessorGrowsstarted grow question 3y ago
Deficiency my plant is exhibiting has progressed. I checked PH repeatedly, and it does not seem to be a ph issue. Gave Gaia Green nutes 2 weeks ago and nothing else since but fish shit with waterings. Had watering issues earlier in grow not sure if that’s the cause. Any tips/fix?
likes
Answer
GrowingTrannyanswered grow question 3y ago
I just answerd this question 30 minutes ago and will tell you the same thing.
Your main problem here is overwatering.
The next problem is a starting Cal-Mag deficiency. You need to add a Call-Mag supplement to your nutritions.
Your pH is great!
Your EC can be 1.6 from this phase all the way till 1-2 weeks before flushing for harvest.
You can add a PK-Booster like PK 13/14 From next week till flushing before harvest. The plant is using this phosphorus (P) and potassium (K) to make and fatten up those buds!!!
Make sure that your nutrient solution is around EC 1.6 you need to devide this EC 1.6 like this.
Cal-Mag EC 0.3 / PK EC 0.5 / Basic Blooming nutrients EC 0.8
That will do till flushing 1-2 weeks before harvest and ofcourse keep pH stable like you've managed already.
Enjoy your grow!
1 like
Complain
Similar Grow Questions
Solved
jihun
DeficiencyHi Guys,What do you think? what is this? End of the 5. week of flower.Thank youLeaves. Color - Yellow
3y ago
1
6
Solved
Micro_green
What do you think the problem could be?There’s something going on with some of these plants and I can’t seem to identify the problem so far. I have been doing a lot of research and I’m in a process of elimination at the moment but the plants growth hasn’t been affected. I will continue to try treat the problem.Week 5
Leaves. Color - Yellow
2y ago
3
3
Solved
Makers_Mark12
Brown spostYellow brown spots on older leavesWeek 5
Leaves. Color - Yellow
6y ago
3
Solved
SamCan
Yesterday i see new yellow leaves (plant 2). I have just checked them again and on the second plant the two small leaves are now brownish. What could that be? I water every two days and the soil is not wet but slightly moist. The other plant 1 grows wonderfully.Week 1
Leaves. Color - Yellow
7y ago
2
3
Solved
TinyTenter
Yellow Burned Bud Leaves. Purple Calyxes. Red Stigmas. Stunted?As u go from top of canopy to bottom, the leaves get darker green and less burn. Lamp is at top of 3ft tent, 10 inch above canopy. Feed is at 1.3EC/6.1ph. Runoff EC climbs, then I FloraKleen flush about once a week. So is it just light burn? What you see? Is she stunted? Thx.Buds. Other
Leaves. Edges burnt
Leaves. Color - Yellow
4y ago
5
6
Solved
ItsGrowingOnMe
Yellowing on older fan leafHey guys, my photo sour d has some earlier growth showing some yellowing in the center of a few leaves. I fed this plant a foliar spray of cal mag plus way back in the 2nd or 3rd week and it got burned on the leaves but does this look more like a deficiency?Week 5
Leaves. Color - Yellow
2y ago
5
3
Solved
kalmiata
Light tops after dark growth (but not clawing)Tops are coming in a bit light on this girl - what gives? I did recently bump up the light intensity a bit but nothing major. Nothing has been amended into the medium in 3 weeks or so to let her fill out the new pot and because she was pretty dark so I didn’t want N-tox. pH 6.5Week 8
Leaves. Color - Yellow
3y ago
2
3
Solved
Carrascovsky
Deficiency SignsHi guys. I need help. My plants are showing some brow spots and yellowing leaves, both symptoms are showing on the older leaves. I am only adding nutrients on every other watering, so I don’t think it’s overfert, can anyone help me to identify the issue?Week 7
Leaves. Color - Yellow
5y ago
3
4
Solved
Greengiant716
What am I doing wrong. I’m noticing the leaves are turning yellow.Hi everyone just a quick question. I’m giving the right amount of nutes. Grow micro bloom half of what it says on the label and also using Piranha ,tarantula and voodoo juice all by advanced nutrients noticing some yellowing leaves on all of them. What am I doing wrong ?Leaves. Color - Yellow
6y ago
2
Solved
greenlighter
Leaf tips yellowing in early flower... Nute issue or normal?Hi guys, so my LSD-25 is on the second day of flowering. Assuming everything else is perfect, does the soil (Happy Frog) need fertilizer or should I let her be?
Organic fertilizer: amazon.com/Down-Earth-Organic-Fertilizer-2-5-0-5-2-5/dp/B000CO7ZYI
Thanks for the help!Week 5
Leaves. Color - Yellow
4y ago
4
6
Solved
Moondogz
Suspected Nitrogen DeficiencyNoticed yellowing leaves at the start of Week 3. Suspect nitrogen deficiency. Using Cal-Mag, Alga Grow(NPK 4-2-4), and Power Roots(NPK 0-0-2) at half the recommended dosage. PH is measured at - 6.5.Leaves. Veins - yellow between
Leaves. Color - Yellow
Feeding. Deficiences
2y ago
2
2
Solved
a_tribe_thats_stoned
Brown and yellow leaves help me get my plant healthy plzMy first time growing and my clone has started to get these brown dots everywhere. Now some of the leaves are dying and it’s getting worse. Online it says it could be mildew or a calcium deficiency.Leaves. Tips - Burnt
Leaves. Color - Yellow
4y ago
3
4
Solved
Fre_84
Overfetilization 2?Hi guys I'm in the seventh week. What could it be? Out of 5 plants, of five different types, two plants have plagron substrate. The other three plants have a biocanna substrate and do not have this problem. Overfertilization?Leaves. Color - Yellow
Plant. Other
4y ago
1
2
Solved
greenhousegrowgirl
Possible Nitrogen Deficiency?Is this a nitrogen deficiency? I had a yellowing leaf or two at the bottom of the plant which have since dropped off, but rest of the plant is looking patchy now. I have just switched from fish mix to bio grow.Week 8
Leaves. Color - Yellow
4y ago
1
3