Need Help Please

litljohn

litljohn

Well-Known Member
MY plants have purple stems, the lower leaves are yellow and I am getting rust spots on the leaves. Growth is also stunted a lot...need help please
 
Mr.lahey

Mr.lahey

Active Member
litljohn said:
I fed with organic fish emulsion a few times, the plants are from seed and are about six weeks old. Heres a couple pics... PH is at 7 and I feed at 1/2 to 3/4 strenghts
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ph is at 7 i dont kno if its the same for hydroponics at soil but u have nutrient lock out 7.2 is how it comes out the tap in most places purple stems ur letting it get to cold at night in there
 
litljohn

litljohn

Well-Known Member
Mr.lahey said:
ph is at 7 i dont kno if its the same for hydroponics at soil but u have nutrient lock out 7.2 is how it comes out the tap in most places purple stems ur letting it get to cold at night in there
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Temps are 65 to 70 at night so I dont think thats the problem. I have never had problems with the ph, and it is actually about 6.8
 
Mr.lahey

Mr.lahey

Active Member
litljohn said:
Temps are 65 to 70 at night so I dont think thats the problem. I have never had problems with the ph, and it is actually about 6.8
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lol well im telling u purple stems are casued by it being to cold bro im sure u can find stuff about it on here
i was having kinda the same problem i posted it on here as well
 
litljohn

litljohn

Well-Known Member
Mr.lahey said:
lol well im telling u purple stems are casued by it being to cold bro im sure u can find stuff about it on here
i was having kinda the same problem i posted it on here as well
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It can be caused by phospherous def. as well as many other things...and my temps are in a good range, so it has to be something else
 
litljohn

litljohn

Well-Known Member
litljohn said:
It can be caused by phospherous def. as well as many other things...and my temps are in a good range, so it has to be something else
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is there aNYONE ELSE THAT MIGHT HAVE SOME IDEA'S?I REALLY NEED TO FIX THIS PROBLEM,THESE PLANTS SHOULD BE GOING INTO FLOWER SOON AND THERE TINY LITTLE SIC THINGS
 
S

supernovagrowlights

Member
try to drop the ph a lil i like mine between 5.8-6.2, mabe your plant want the temp to stay between 70-75, just make a couple small changes 1 at a time annd wait a couple days and see if it fixs it and remeber dont drop ph to fast i drop mine about .5 a day if it gets really high
 
litljohn

litljohn

Well-Known Member
supernovagrowlights said:
try to drop the ph a lil i like mine between 5.8-6.2, mabe your plant want the temp to stay between 70-75, just make a couple small changes 1 at a time annd wait a couple days and see if it fixs it and remeber dont drop ph to fast i drop mine about .5 a day if it gets really high
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i need to get a ph pen first,i was thinking about the milwakee ph pen,its a pretty good price at 20 bucks.i also need a small heat mat for my clones.they root fine but the mat will speed things up alot
 
S

supernovagrowlights

Member
i bought a ph test ket for like $15 it had ph up and ph down, and a vile, a dropper and the chemical drops, its not super acurate but it will keep you between 5-6
 
litljohn

litljohn

Well-Known Member
supernovagrowlights said:
i bought a ph test ket for like $15 it had ph up and ph down, and a vile, a dropper and the chemical drops, its not super acurate but it will keep you between 5-6
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i was thinking about one of those kits but i figure ill spend the extra 5 bucks and get the digital pen
 
Lil Czr

Lil Czr

Well-Known Member
First of all, if you are growing in soil I highly doubt that ph is your problem. Soil is a tremendous buffer.

Second, we need to know your set up. Like what kind of lighting, how often you feed/water, ballpark temps and such.

Talk to us.
 
litljohn

litljohn

Well-Known Member
Lil Czr said:
First of all, if you are growing in soil I highly doubt that ph is your problem. Soil is a tremendous buffer.

Second, we need to know your set up. Like what kind of lighting, how often you feed/water, ballpark temps and such.

Talk to us.
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i have a 400 watt hps in a 4'x4' tent,7 foot tall.it has a 130cfm inline fan with passive intake.i use alaska fish emulsion for nutes.iwater every 2 days with 1 cup of water.now im watering 2 cups every 2-3 days,its showed improvement.iim adding nutes to the next round at 1/2 strength.the temps are 67-70 low and 78-85 high
 
snutter

snutter

Well-Known Member
your pH is too high and is locking out nutes. You need to get it down to around 6.0 to 6.2 for soil, I believe. I am talking run off pH of course...
 
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