please help really important my plants are dyin

[mat369]

iv been growin my babies since march so they are prety far into it(preflowers are showin and should b buddin in few weeks)... im doing an out door grow and all has gone well till recently.. one of my plants started getting yellow leaves and going crispy i thought it was over fert so i stopped, and havnt done it to any of my plants in about a month now. it kept getting worst and is now very close to death! i know im not over watering because i live in spain and its very warm here and im watering them daily so it not under watering... anyway the rest of my plants have started getting yellow leaves (quite alot) including my biggest meter n a half. so now im worried they might die off too. i bought some fert with 10percent nitrogen in it and used that with the water 2 days ago correctly so im hoping it may improve them but i dont know? iv checked the ph of the water with a pool ph tester and it showed up as 7.6 which i know is way off what it should be.. is this the reason for the yellow leaves? and how can i correct it to the rite ph.. can anyone tell me what to add to the water and how much , say to the littre, i will need to add? also i was wonering as i live in spain and the temp is very high is there a possibilty the sun could b too much for them and thats the cause of the dying off?
they are all mostly in the ground(i have 8 btw) so theres no way i could really move them anywhere else, there in a place where they get constant sunlight all day also..

so please can anyone help me sove this problem and save my girls from dying?
chears
matt

[Ganja Guerrilla]

you may have soured your soil with the ferts??? or the Ph could be off from your water

take several sample of soil around the plants, and away from the plants


add enough water (6.5ph)to each sample to make a slurry, test the PH of the slurry

your looking for abnormal ph readings and also a difference in readings from the soil away from the plants

optimum ph 6.5-6.8

you need to start correctng your water thats just tooo far out and may infact be the cause of your issues

[mat369]

thanks for the quick reply i was hoping u would answer iv seen some posts and think u no what ur tlkin about so plus rep.. i no its not over fert as i only did them once a week for anout a month and used the rite amount.. also the ph 7.6 is from my tap which im using to water my plants so do u think thats the prob and how do i get it to 6.5?
thanks alot

[Ganja Guerrilla]

you need to start correcting all your water, ferts and flush water with PH correcting solutions.....phosphoric acid type are the best as out plants use phosphorus

available at most hydro shops and on ebay

you can use vinegar till you get the good stuff

fill several 5 gallon buckets with water and keep adding a few drops of corrector at a time till you get to 6.5-6.8

[mat369]

thanks alot i think uv saved me so its most likly the ph then? and sorry to sound noobish but 5 gallons is alot of water to b adding a drop of solution too? il try get the stuff tomoz is it a pool shop or garden shop ur tlking about? again sorry to sound noobish but i cant afford to lose this crop
thanks again
matt

[Ganja Guerrilla]

you will need 12 drops or more most likely with 7.6ph but thats not the point its acid and a few drops can push you over the edge & go acid.....little acid then test ....little acid then test

do not assume your waters PH is going to be the same every day my water changes daily....test test test

[mat369]

ok brill i understand what ur sayin now thanks alot dunno y i didnt think of that, one more thing tho whats the acidic suff i buy called?
chears

[Ganja Guerrilla]

http://cgi.ebay.com/VITA-GROW-PH-DOW...QQcmdZViewItem

[mat369]

ok chears il look for that tomoz dose it have to b phosphoric acid or will any acid like for the pool do it?

[Ganja Guerrilla]

No there are lots of acids ...........not all are good for plants
sulphuric acid is ok not as good but acceptable, if your having trouble getting it local, but its all there online
anything from a hydro shop is OK

[mat369]

yh ok thanks for that i think online is out the question cos i need it asap really n gettin it delivered to spain could take weeks cos iv done it lol...
by hydro shop do u mean pool shop beacuase theres no 'hydro shops' around here that i no of but i no to get phorsphoric acid now so il go and look for it tomorrow now... thanks for ur help its much apprieciated

[Ganja Guerrilla]

by hydro I mean hydrophonic grow shops

you have no emergency get the good stuff online , as previously posted

you can use vinegar till you get the good stuff

[mat369]

ok thanks... all taken in... dunno where il find a shop like that in spain but im sure il find somethin thanks alot for everythin man...