Deficiency or Nutrient burn of some sort?

Within the past few days I've noticed some yellowing on my leaves starting from the inside of the leaf going out. Seems to be along the viens of the leaves if that helps. Also seems to be more on the newest growth rather than leaves near the bottom. My last watering I gave a very light feeding of fox farms big bloom,calmag, and armor SI. Always ph'd between 6.3-6.7, using Fox Farms Ocean Forest soil. Giving VERY light feedings when i do feed, but mostly just watering with ph'd water so far. Any ideas?

Look into Sulfur deficiency.

Jypsy Dog said:

Look into Sulfur deficiency.

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Good thought, looks very similar. Something thats throwing me off is my yellowing seems to come from the inner leaves closest to the stem, and starting in the veins/inner part of the leaf moving out. Not sure if any feeding ive done has any sulfer... What would you suggest to get it into my program?

Thanks a ton for the response.

How close is your lights ?

Also FYI ... Armor Si loses availability above 6.5 .
FFOF / Happy Frog is prebuffered at 6.3 right out if the bag. I always target 6.3-6.5 no more no less.

I also see some mottled leaves ( are you foliar spraying ) not sure . Always make sure you mix in silica FIRST in water ( mixed well ) before other amendments then ph to range. Silica often spikes the ph.

For sulphur issue a simple epsom salt foliar will help. Also but feed up ... big bloom is not enough.
You can either top dress ffof and water in ( simple ) or use a bit of Grow Big for a nitro bump ( looks a little light color on fans ).

notoriouscheech said:

Within the past few days I've noticed some yellowing on my leaves starting from the inside of the leaf going out. Seems to be along the viens of the leaves if that helps. Also seems to be more on the newest growth rather than leaves near the bottom. My last watering I gave a very light feeding of fox farms big bloom,calmag, and armor SI. Always ph'd between 6.3-6.7, using Fox Farms Ocean Forest soil. Giving VERY light feedings when i do feed, but mostly just watering with ph'd water so far. Any ideas?

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Its either a sulfur or iron decifientcy... check this out its helped me in the past. Might even be an early zinc def

Budzbuddha said:

How close is your lights ?

Also FYI ... Armor Si loses availability above 6.5 .
FFOF / Happy Frog is prebuffered at 6.3 right out if the bag. I always target 6.3-6.5 no more no less.

I also see some mottled leaves ( are you foliar spraying ) not sure . Always make sure you mix in silica FIRST in water ( mixed well ) before other amendments then ph to range. Silica often spikes the ph.

For sulphur issue a simple epsom salt foliar will help. Also but feed up ... big bloom is not enough.
You can either top dress ffof and water in ( simple ) or use a bit of Grow Big for a nitro bump ( looks a little light color on fans ).

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Lights are about 20-24 inches from the top of the highest plant. Turned up about 30-40% of the way. LED. Good to know, i will start staying closer to 6.3-6.5.

foliar spraying.. I had a very small powder mildew problem( one spot on two different plants a week apart) that i have been combating with a milk/water spray which seems to be helping, but ive only done twice hence the small spots im assuming you are seeing. Noted. ARMOR SI Always mix first when using, then ph. Thank you.

I take it then you think the coloring is definitely not from too much nutrients and I should be adding more. I have yet to add "Grow Big" which i may add some as well along side armor si and big bloom. Do you think I should be adding calmag still as well? Liquid karma?

So an espom salt foliar spray should help the sulfur and dont hesitate to add a little more nutrients is what im gathering.

Clumpyoyster said:

Its either a sulfur or iron decifientcy... check this out its helped me in the past. Might even be an early zinc def

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Thanks man! Have actually done a bit of reading on that website but didnt zone in on just one problem. I was originally thinking Iron possibly.

Always mix in your nutrients first then pH the water. Bloom nutes drop pH levels by maybe a full 2 points. My tap water is about 7.3-7.8 and once i add a full strength nute feed the pH drops to 5.7-5.9. I then add my pH adjustment up or down in bloom its always pH up

@Clumpyoyster

Noted! I have been doing this so far so im on the right path. Always PH after nutes and usually just have to add a few drops of ph down. Mine tends to stay around 8.5-9 before ph.

Thinking of feeding here soon, would ya'll suggest to give a decent feeding to try and clear the yellowing? The pots are on the dryer side and its been 3-4 days since last watering so i dont think im over-watering by any means. I usually water until just a little bit of run off.

Thinking of feeding with Fox Farms big bloom, grow big, cal mag, and possibly Armor Si. Also have molasses, liquid karma, seaweed extract, fish guana, and some "energize". Dont want to feed too much though. Suppose i could feed liquid karma as well as they have feeding early on in the schedule as well. Just nervous on over-feeding!

Iron def. ph too high likely because your water is very alkaline naturally. so even if you ph down it will naturally climb back up especially of youve overwatered. or simply rootbound

Smoknkush_420 said:

Iron def. ph too high likely because your water is very alkaline naturally. so even if you ph down it will naturally climb back up especially of youve overwatered. or simply rootbound

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I plan on Ph much lower tonight probably at 6.3, think that is good or even lower possibly? I dont believe ive been over watering. I water until a little bit of runoff and letting them get dry until watering again. Usually 4 days. Dont believe they are rootbound yet as the root growth was fairly slow in the red cups and I transplanted about 2-3 weeks ago on them.

With all that in mind think I should just be feeding a little more? Both big bloom and grow big have a little bit of iron. Have yet to use grow big.

what is your medium? iron is abundant in most soils. if a plant isnt getting it 99% of the time its a lockout or a root issue so no need to add any

Smoknkush_420 said:

what is your medium? iron is abundant in most soils. if a plant isnt getting it 99% of the time its a lockout or a root issue so no need to add any

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Fox Farms Ocean forest.

A week or two ago I saw a couple gnats and havnt really seen any since, maybe one. I wonder if it is a root root problem with gnats underneath the soil? Not sure just spitballin.

If they are gnats I would transplant them into new cups/pots and after that put like an inch of sand on top if it's fungus gnats they cats eat or breed there and will die in a week if it's not that you could be watering too much

i doubt irs gnats ud likely see some ontop just try transplanting and maybe use a different water source and see where that brings u

Smoknkush_420 said:

i doubt irs gnats ud likely see some ontop just try transplanting and maybe use a different water source and see where that brings u

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With fungus gnats they are really small,and are usually black so hard to see in dirt where is where they like to stay most of the time because they feed on the fungus in the dirt they can lay up to 200 eggs a week the adults don't do the damage the larva will eat the nutrients and the roots the adults have about a week life span so even if it is not the gnats doing damage right now they will become an infestation quick of thousands so I would still do something to counter measure them like sand or something like that they feed on fungus and need a surface that will stay moist (sand will not grow fungus and will dry quick so the fungus gnats won't breed there)

m99smith said:

With fungus gnats they are really small,and are usually black so hard to see in dirt where is where they like to stay most of the time because they feed on the fungus in the dirt they can lay up to 200 eggs a week the adults don't do the damage the larva will eat the nutrients and the roots the adults have about a week life span so even if it is not the gnats doing damage right now they will become an infestation quick of thousands so I would still do something to counter measure them like sand or something like that they feed on fungus and need a surface that will stay moist (sand will not grow fungus and will dry quick so the fungus gnats won't breed there)

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yeah i understand but in my experience u can always see a couple on the edge of the pots. they do come out.. lol i just put down eggs shells like mulch and put DE ontop and down the sides of the containers.

Smoknkush_420 said:

yeah i understand but in my experience u can always see a couple on the edge of the pots. they do come out.. lol i just put down eggs shells like mulch and put DE ontop and down the sides of the containers.

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That sounds like a good idea I should give it a try when I plant another I've also hear of ppl having a bowl or bottle of non-alcoholic wine and the fungus gnats just jump in and suicide lol but yeah for what this guy has going on he also needs to up his nutes he is defenatly starving his plant

I did actually buy some misquoto bites for the gnats but have yet to use yet. I havnt been seeing any flying around so should i be safe to assume they are gone? I also dont want to transplant as ive only been in these pots for about 2 weeks so not enough time for roots. I didnt water last night and figure I would let dry out a little more and give time for more responses.

Thanks everyone

notoriouscheech said:

I did actually buy some misquoto bites for the gnats but have yet to use yet. I havnt been seeing any flying around so should i be safe to assume they are gone? I also dont want to transplant as ive only been in these pots for about 2 weeks so not enough time for roots. I didnt water last night and figure I would let dry out a little more and give time for more responses.

Thanks everyone

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thats a tough one. there could be eggs still. add some de water little and wait a week if u dont see them still youre likely good.