they are getting better but

[richardcranium]

im wondering if this is the same problem i was having before or if this is a different problem.

im still using PBP and i have added a little bit of cal mag to the res. about 100ml to 35gal i tried 50ml for a while and nothing happened so i added more and they look a lot better now they are growing again but they still have problems. im still getting brown spots on the leaves




they are about 3 weeks in veg ph 5.7-5.8 hydrotation and every 2 hour waterings. lights are 1000 about 4' away

 

[MynameStitch]

WHat is the res temp and what is your ppms? How often are you testing your ph?

 

[Litz_C]

looks like pH problem. fix ur pH man and Wassup Stitch still hanging?

 

[richardcranium]

res temp is about 70~71f i check the ph once a day and it dont move much so i only have to correct it about once every 3 or 4 days. at 5.83 ill drop it to about 5.76

room temp is set at 74f
the tds is 1.1 i think thats about 800 on the meter

 

[MynameStitch]

looks like pH problem. fix ur pH man and Wassup Stitch still hanging?

Hey wassup litz ya still hanging in there man; this job is starting to get very stresfull let me tell ya........ It's not the noobs that is causing it either

Here is a chart for ya



http://www.drugs-forum.co.uk/growfaq/1637.htm

Hey richard I am going to take a wild swing at this one... cause my plants did that when I was low on phosphorus.... but in this case you may be locking them out. This strain seems to take less tolerance to nutrients.
But you may be using to much like you said.. you added more then you got this so I Would back down on the nutes a bit and start from there.

Here is my pic when I had a phosphorus issue:

tried 50ml for a while and nothing happened

you should of kept it here at this level untill they got bigger and more hungry, then you should of upped it.

WHat water are you using tap water? RO?

 

[richardcranium]

i am using tap. i thought i was a phosphorus problem but to me it didnt even look close to pic above. i think its because of the spotting and yellowing.

i went up so high because on the bottle it says use 10ml per gallon i have the sensi-cal mg

just a noob question. but could all these problems that started young be effects of over fertilizing them when they were young and i should just wait to see what happens
i haven't ever over fertilized before so i dont know the lingering effects of burning the roots

 

[MynameStitch]

Ok, first off when you use tap water you are going to have a major issues controlling your ppms because it's most likely hard water...... hard water makes it more difficult for the plant and nutrients to be absorbed... I forget why will have to find the article I read long time ago...

but anyways you want to test your ppms with nothing in there just plain water and then test the ppms with the amount you have and then add them up and find out how much. In the end most likely you are going to have to use some other water.

10 ml per gallon is like what...... 2 1/4 teaspoons?

so how many ml is in there now of PBP?
is it 100?

no 2 deficiency's are a like except for the common issue; the more rare ones look a little different due to certain situations as they could be caused by soil amendments, lockout issues, over watering and such.

What I would do is flush it drain the system and add a smal amountl the amount you did before and wait, hydro shows very quickly and you will know within hours or a day if something is wrong.

Where with soil it takes about a week.