The Grow Awards 2026 🏆 
ph too low?
Ezzjaybruhanswered grow question 3y ago
Hard to say.. but a pH in of mid 5 is wayyy too low for soil. Get it up around 6.5
This was my issue with FF trio. Tiger bloom is great but it absolutely tanked my pH to problematic levels
Similar Grow Questions
Solved
NewtDawg
Crashing and burning?Mayday Mayday. Some very yellowing leaves which appear to be bending down. Alternating water and nutes, reduced quant, with good runoff PH in early 6’s, no working tds monitor. Lights @ 18”, full tilt. Too close and/or nute issue? Flush the shit out of it ur no? Thanks gang x2y ago
3
Solved
buddhi_coop
Yellow tips on new growthWhat do the yellow tips on new growth mean?Leaves. Color - Yellow
Leaves. Other
Feeding. Deficiences
4y ago
1
1
Solved
BoboLacetti
help in Hydro RDWC/DWCHello, my plants are now about 4 weeks old. The leaves droop and curl. The spots on the leaves are increasing. Is the PPM value too high? It's 1000ppm tds
They grow in an RDWC system with top feed. The top feed is permanently switched on. Can that lead to problems?Leaves. Curl down
Leaves. Color - Dark-brown
Roots. Color - Brown
1y ago
1
2
Solved
Khanos
yellowed leavesOn the 15th day, the lower leaves started to turn yellow, I'm worried. what should i do please help 😣Week 3
Leaves. Color - Yellow
4y ago
5
5
Solved
question_a_pig
Looks like a defficiency. But how?Hi, I'm puzzled by this plant's behavior. It's being treated in the same way as others. And yet it's stunted and looks unhealthy.
Can you please help identify, what's happening?
All the info is in the diary.
1st photo is the plant I'm talking about, the other two it's sisters.Leaves. Color - Yellow
2mo ago
4
Solved
hmstr22
White Widow day 42 looks like she lacks somethingHi,
its day 42 (feminized white widow). My first grow.
She is growing in a minigrow growbox on soil. since a few days old leaves turned yellow. also on the younger leaves the edges turn yellow and have some darkish spots. ph is ~6. any ideas? what kind of lack could this be?Leaves. Color - Yellow
6y ago
2
4
Solved
Whiteybulger1814
Having a problem, not sure what it is..Got any advice?.Not sure what the problem is I went down tonight before lights out and it's been a couple days and this what I find...VPD is fine, PPFD is on the mark, Gaia green 4-4-4 and 2-8-4 and worm castings in bergers 6 soil in autopots.What's your thoughts? Running LA confidential week7FLeaves. Color - Yellow
3y ago
4
4
Solved
ReginaldJohnstonX3
Late Flower Rapidly Yellowed LeavesThe yellowing leaves have definitely progressed quite a bit in this last week. Does this look like a normal natural late flower nitrogen deficiency? I still want to flush the plant, wondering if I should start the flush now because the leaves are already starting to get yellowed.Week 19
Leaves. Color - Yellow
4y ago
5
4
Solved
iMpulsive_Grow
Are my leaves okIs the yellow normal for it to be still on those leaves or is are those yellow spots suppose to go away? Day 7 and day 11Leaves. Color - Yellow
6y ago
1
1
Solved
stashio
Yellow edges to leavesHello fellow growers. I have noticed some yellow edges to a handful of
her leaves. pH droped a bit today down to 5.6 but has been stable at about 6.4 previously. Photos from the last few days show this problem has been creeping for a couple of days. Any ideas?Week 10
Leaves. Color - Yellow
4y ago
1
6
Solved
WietBioloog
Start feeding two weeks into (auto)flowering?Two autoflower plants around two-three weeks into flowering. One plant is getting light green and yellowish leaves that feels papery. I have not given any extra nutrients (just nutrient rich soil to begin with, a little over 20 liter). Should I start feeding now? Or is too late?Leaves. Color - Yellow
5y ago
1
4
Solved
herbalistssword
Yellow leaves and spotsNoticed some leaves growing yellow at the bottom of the plant, a few days ago, added biobizz bloom as I hadn't used any fertiliser yet. Today I noticed the spots on 1 of the leaves, veins in the middle have what looks like rust. Any ideas?Week 8
Leaves. Color - Yellow
5y ago
1
1
Solved
Professor_Chaos
Cant seem to shake acidic coco/perliteCan't seem to shake my acidic reused coco/perlite mix.. Ph going in is 6.2 - 6.3... Runoff is coming out 5.8 - 5.9.. Ive even ran 6.5 thru the mediun and still coming out at 5.8 - 5.9.. Should I try 7.0??? Help please!!!Week 3
Leaves. Color - Yellow
5y ago
2
2
Solved
JoshuaTreez
Help :)Is this potassium deficiency? Or nitrogen toxicity?Leaves. Color - Yellow
4y ago
1
2
Solved
helpmamagrow
Yellow tip and leavesI’m not sure what’s going on here? Help!Week 10
Leaves. Color - Yellow
5y ago
2
1
Solved
buddhi_coop
How do I get my leaves to lift back up ?How do I get my leaves to perk back up like the plant next to it? The plant on the right is the one with the leaves dropping down .Leaves. Curl down
Leaves. Other
Other. General questions
5y ago
6
7
Solved
Jaygrow1020_autoking
Growing slow and spots on the leaf'sFastberry not doing well. Can anyone tell me what I'm doing wrongLeaves. Curl down
Leaves. Color - Yellow
Other. Other
5y ago
1
Solved
yanis
lower leaves infestation3 lower leaves (of which one is especially affected) got thrips (or something). sprayed with neem oil solution today.is there sth more i can do?should i remove the leaf?is the whole plant going to die?btw upper leaves are healthy and keep growing everydayLeaves. Color - Yellow
Leaves. Color - Pale
3y ago
1
1