I need some help

[frostynsv]

im haveing a problam my plants all seem healthy but three or four plants have developed yellow almost dead tissu on upper leaves bettween the veains and the whole leaf seems paler than they were it all developed in 8 hours while i slept any body know for sure what it is and how to treat it sorry i have no photos i think its ether potash def or iorn def please help my babies back to health

 

[tech209]

are you ph adjusting your water>???.....

 

[frostynsv]

i let it set out for at least 24 hours before i use it some one said that was good enough if not let me know

 

[tech209]

naw man by all means thats good your doing that but you should be ph-ing the water .......

 

[frostynsv]

how u do that

 

[thedoctorzoidberg]

i let it set out for at least 24 hours before i use it some one said that was good enough if not let me know

phing the water?????? wtf..... if it's tap water and you live in the states it will be between 5.1 and 6.3 which is fine for your plants. it's regulated.


how close are your lights, have you transplanted recently, when do you water, any ferts, any air circulation.

when you set your water out overnight.... that is to reduce chlorine found in tap water.

you say it's your top leaves...
it's most likely nutrient deficiency, if it was lower leaves it would most likely be stress.

heat issues: if you spray your plants and there under hid lights or your grow room is over 92 degrees this can cause the water to burn spots on your leaves.


it could be any number of things.... all of which are answered in plant problems.... even if you might have to read a few to get what you need it's easier that way, well it is if the person having problems has pics so you can compare yours to them.

 

[frostynsv]

thanks i think it was burn from water i waterd them yesterday and there was some water on the leaves and i didnt wipe it off and the plants that have the problames are the ones i remember noticing had water on them but im gona keep an eye on them zoidberg is a medical doctor

 

[tech209]

phing the water?????? wtf..... if it's tap water and you live in the states it will be between 5.1 and 6.3 which is fine for your plants. it's regulated.


how close are your lights, have you transplanted recently, when do you water, any ferts, any air circulation.

when you set your water out overnight.... that is to reduce chlorine found in tap water.

you say it's your top leaves...
it's most likely nutrient deficiency, if it was lower leaves it would most likely be stress.

heat issues: if you spray your plants and there under hid lights or your grow room is over 92 degrees this can cause the water to burn spots on your leaves.


it could be any number of things.... all of which are answered in plant problems.... even if you might have to read a few to get what you need it's easier that way, well it is if the person having problems has pics so you can compare yours to them.

damn if you got good water like that then be my guest and use it without ph-in but here in cali cal (east los) things dont work like that around here....our water sucks and tastes like $hit my tap seems to be 7.0 plus ......whenever i ph test the water comes up with a dark green so i acid it down to about 6.5-6.8 not gonna kill me to ph my water every time but hey my words doesnt have to do the talking but my grow journal does

 

[RL420]

phing the water?????? wtf..... if it's tap water and you live in the states it will be between 5.1 and 6.3 which is fine for your plants.

i live in a very large city and the PH of my tap water is over 8

 

[email468]

you can not trust tap water to be a consistent pH or PPM.

Correct pH is one of the basics of growing and is highly recommended to keep an eye on it. Though it certainly is possible to grow weed without worrying about it - it is not recommended.

 

[thedoctorzoidberg]

you can not trust tap water to be a consistent pH or PPM.

Correct pH is one of the basics of growing and is highly recommended to keep an eye on it. Though it certainly is possible to grow weed without worrying about it - it is not recommended.

ppm of tap water huh???? REAL important for growing in soil............

don't you hate checking the ppm and ph of rain water in your outdoor grows..... that must be hard.

 

[email468]

ppm of tap water huh???? REAL important for growing in soil............

the basics of growing:
light, water, air.

Thanks for the education. You may want to consider adding food/nutrients, and temperature to your list of basics.

You can get away without checking your PPM when feeding your soil grown plants with nutrient-added water. I would prefer to be certain but we are free to make our own choices. Perhaps being a hydro grower I overemphasize PPM and pH, but assume they are important for both soil and hydro.

 

[johndoh610]

Ph-ing your water for soil is very important. My tap water ph is 9.0 if I wouldn't have found this out in time it would have eventually killed my plants, not to mention it drastically stunted growth in my seedlings. Now I always check the ph even when I know its fine, call me paranoid but better safe than sorry. Hopefully you figure out the problem.

 

[tech209]

Ph-ing your water for soil is very important. My tap water ph is 9.0 if I wouldn't have found this out in time it would have eventually killed my plants, not to mention it drastically stunted growth in my seedlings. Now I always check the ph even when I know its fine, call me paranoid but better safe than sorry. Hopefully you figure out the problem.

amen to that i also too also check my ph....i use those liquid general hydroponics ph tester kits and the graph only shows 7.0 or greater= dark green and my tap is dark green....god only knoes how high L.A tap is.....ill be pickin up a digital ph tester real soon tho.........

 

[HIGHLANDERZ]

I read a recent post from Al. B. Fuct. that said that chlorine in water is so minute it doesn't make a difference and won't harm your plants.

HOWEVER, like email48 said, there can be a lot of other chemicals and minerals in tap water that aren't good for plants.
I used distilled water, it's pretty cheap and free of minerals and other stuff that's in regular tap water. Just my 2 cents...

 

[email468]

I read a recent post from Al. B. Fuct. that said that chlorine in water is so minute it doesn't make a difference and won't harm your plants.

HOWEVER, like email48 said, there can be a lot of other chemicals and minerals in tap water that aren't good for plants.
I used distilled water, it's pretty cheap and free of minerals and other stuff that's in regular tap water. Just my 2 cents...

To be honest, I was mostly concerned with over-nuting. If you are using tap water (like me but not for long) then i'd recommend a hard water specific nute.

 

[tech209]

To be honest, I was mostly concerned with over-nuting. If you are using tap water (like me but not for long) then i'd recommend a hard water specific nute.

can you recommend me which ones......need to pick some up real soon for my clones and dont wanna use the gen hydroponic 3 part on them...was thinkin all of the fox farm line up..grow big,big bloom,tiger,cha ching,beastie bloomz,open seasme......

 

[thedoctorzoidberg]

email468....."Thanks for the education. You may want to consider adding food/nutrients, and temperature to your list of basics"

no... prolly not.

to me basics are what a plant needs to survive to maturity, not to be a 2lb monster.

can't remember the last time i had to feed the weeds in my field.... or when mother nature said, 98 degrees is too hot.

 

[email468]

i have experience with only two nutrient lines both from General Hydroponics. The Flora Nova (2 part) and (drum roll please...) Flora 3-part series. I use the 3 part because they make the Micro in a hard water formula. I know of no other nutes that have a hard water formula.

But now that I'm switching to RO water, I will be shopping for nutrients and be in the same boat as you

I will be studying this post from Earl before making any decisions:
https://www.rollitup.org/hydroponics-aeroponics/54183-what-absolute-best-nutrient-2.html#post599256

Sorry i can't be more help

 

[email468]

email468....."Thanks for the education. You may want to consider adding food/nutrients, and temperature to your list of basics"

no... prolly not.

to me basics are what a plant needs to survive to maturity, not to be a 2lb monster.

can't remember the last time i had to feed the weeds in my field.... or when mother nature said, 98 degrees is too hot.

I did not realize original poster was growing outside. Indoor grows benefit from adding nutrients.

I wonder why you would't want to add temperature as one of the basics when you point out that 98 degrees is too hot.