plant has gotten worse. homemade remedy!

my plant has gotten worse...i posted an earlier thread didnt get much help they said it looked healthy but i new something was wrong with it. and ofcourse i was right my plant its loosing its green color from the base of the leaf to the tip turning bright lime green/yellow and now it looks like my new growth is just coming out like that?

my plant is growing healthy no twisty leafs or dried tips.
nice pointy slim leafs.
using 4 6,500k 23w cfls in a pc grow box temps are between 75-85f
always changing in between them never over 85f.

soil- 25% ffof and 75% organic potting soil.
ph-not tested but have grown fine with tap water my last grows.(i have a ppm reader but its from my job for sanitizer tester idk if that might work) or how to read it for my water?
nutetients-gave it once when i first saw signs of it thought it needed nitrogen 1tsp/gal only gave my plant 200ml
after that i thought it was magnesium def. and foliar fed 1/2tsp/gal for foliar fed of epsom salt.
just gave that same amount this last watering to see if it might help.
last watering was on thursday. i know its only been 1 day but im wondering if im gonna see any changes?

i dont have any money right now so any homemade remedy's that you guys know about might help or what exactly is this problem going on?
thanks for the help in advance.

its only the top thats effected those all those leafs you see thats it the bottom is fine.

please help its my last seed and dont want it to go to waste.
if you dont know please dont try helping experience growers only.
i get so many mixed advices here.
and i have dont my research but tell
if its:
sulfur
manganese
or magnesium.

If you use regular tap water and you dont adjust the PH, its going to yellow because regular tap water comes in at 8.0-9.0 PH, and you need to drop yours to about 5.5-5.6 if your using organic medium. PH down cheap, 25 bucks a gallon.

He's right in one respect^^^^^^^however a ph of 5.5 or 5.6 is too low for soil, for hydro it should be 5.8, soil I believe should be 6.2 but I'm not a soil man so I could be wrong, I'm sure someone will chime in and correct me if I wrong.

I have used baking soda to lower ph, maybe you have some around? It doent take but a pinch to get a gallon to the correct ph, but i would recomend a ph meter if you don't have one.

Sorry baking soda will raise ph and lemon juice to lower.

Well it isn't water we have water filter and that's the water I use..ive used it before just fine idk why im having this problem.
What if it could be ph of my soil.
It was a really cheap bag that I bought about 1year ago. And it has been sitting outback for a while.
But most likely I'm going to get a ph tester next paycheck but untill next week...now if you guys are sure it's high ph not low ph ?
How much of baking soda. In a gallon... I do have some =D
also also what is the deficiency is this?

I would just wait untill you purchase the meter that will determine proper diagnosis. But if the ph is too high you can bring it down with lemon juice and if the ph is to low you can bring it up with baking soda. I'm sorry I mis-spoke in my earlier post, I plead thc induced indiocracy.

white vinegar also lowers ph

Limon juice it that a nutrient or with a homemade remedy?

Tanker bud-I heard of vinegar but it HAS to be white vinegar?

And how would I add this to my soil?
Do I mix it with anything?

I don't know where you live but my tap water sure as shit isn't 8.0 - 9.0. It's spot on 6.5 which is just fine for soil.

mr.lightgr3en said:

Limon juice it that a nutrient or with a homemade remedy?

Tanker bud-I heard of vinegar but it HAS to be white vinegar?

And how would I add this to my soil?
Do I mix it with anything?

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You would mix it with the water to correctly ph it before watering/feeding.

Fruitbat said:

I don't know where you live but my tap water sure as shit isn't 8.0 - 9.0. It's spot on 6.5 which is just fine for soil.

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I've lived in many states and I've never had 6.5 pH tap water. Where I am now it's 8, where I lived before it was 8.5.

Rancho Cucamonga said:

I've lived in many states and I've never had 6.5 pH tap water. Where I am now it's 8, where I lived before it was 8.5.

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was any of that well water?

I live in Colorado.

Out of the tap 9 PH

Well im pretty sure I get same water as you wish is from the Colorado river?
I read that if you put coffee grounds in your soil it will help.
So will see the changes soon.
Hopefully because I woke up today to it getting worse its starting to spot on the leafs and heard that's already a late stage of the def.