whats happening to them?

MI5

MI5

Member
whats happening to the leaves? i have been reading up and found it may be lack of potassium ... or is because my cfl300w is 1.5 inch away from the top of the plants?

the tip of some leaves are drying out with a brownish colour:

pl2.jpgpl1.jpg

pics:
 
rocksteady6 said:
Did you ignore my response? Instead you respond to suggestions that were not at all helpful.
Click to expand...

every time my res goes down, my ppm gets higher.. which means the plants are taking more water than nutrients ... so i am just putting more water in with no nutes...
 
MI5 said:
every time my res goes down, my ppm gets higher.. which means the plants are taking more water than nutrients ... so i am just putting more water in with no nutes...
Click to expand...

Thought to check your pH? It could be your nutes are locked out. ;)
 
You need to get some pH down and might as well pick up some pH Up while you're at it. You can put some distilled vinegar in the tank for now to bring it down but I wouldn't rely on that forever, it may interact with nutrients in an adverse manner.
 
what will if i leave as it is? its only happening to some plants and just around 1-2 leaves out of 15 leaves... normally to the bottom leaves.
 
Your plants will continue to be unhealthy and eventually die, what's happening now. From the looks of your leaves you have intrevenal chlorosis going on which can only get worse and goes down hill fast. pH is a very important part of hydro if you're not going to maintain it correctly then you should go back to soil.
 
whiteflour said:
Your plants will continue to be unhealthy and eventually die, what's happening now. From the looks of your leaves you have intrevenal chlorosis going on which can only get worse and goes down hill fast. pH is a very important part of hydro if you're not going to maintain it correctly then you should go back to soil.
Click to expand...

i am maintaining it correctly. since i put nutes inside, it still had a reading of 6.9 . and its 6.9 now. so it was always like that.
 
now my small new leaves are getting this problem...
what is it? how do i cure it? shall i back down on refilin nutes and just put water only to fill my res.

my ph is 5

iph-allcpp404.jpgiph-allcpp400.jpgiph-allcpp401.jpgiph-allcpp402.jpgiph-allcpp403.jpg
 
Listen to me here. You now have to raise your ph to 5.5-6.0. Your plants are going to be fucked up until you get the fact that it is important. Certain nutes lock out at different ph levels. Maintaining a ph of 6.9 or 5.0 in hydro is NOT maintaining it correctly. Adjust your ppm/tds to an acceptable range. Look up lucas formula for some tds/ppm ideas. People are here to help you and give you advice....listen to them.
 
fourrings said:
Listen to me here. You now have to raise your ph to 5.5-6.0. Your plants are going to be fucked up until you get the fact that it is important. Certain nutes lock out at different ph levels. Maintaining a ph of 6.9 or 5.0 in hydro is NOT maintaining it correctly. Adjust your ppm/tds to an acceptable range. Look up lucas formula for some tds/ppm ideas. People are here to help you and give you advice....listen to them.
Click to expand...


i got the ph colours wrong... the ph is 6 not 5.. and when i used my ph meter , it reads 6.5 ..

as for the nutes, i do use the lucas formula... exact how i was told.. my ppm is properly updated.. my res is refilled using the lucas formula...
and also, its only happening to several leaves at the front.. iw ould say 10% of the plant.
 
6 is bettter!! Have you calibrated your meter lately? Mine has to be calibrated all the friggin time. How are your rez temps? With the lucas formula I have to add cal mag. Not saying thats your problem. Give them some time to recover now that your parameters are getting better.
 
You must log in or register to reply here.

Similar threads

ooof-da
Every year it happens - outdoor
2
Replies
20
Views
1K
ooof-da
ooof-da
Jimski
A safe and effective CHEAP tent heater.
Replies
4
Views
845
Jimski
Jimski
Avering
Any suggestions based on what you see?
Replies
13
Views
321
Back Yard Boys official
B
coLeader
Requesting help!
Replies
3
Views
359
simpleleaf
simpleleaf
FosterBD
Burnt up plants
Replies
8
Views
584
go go kid
go go kid
Back
Top