need help with diagnose. +rep

hey guys. came into growroom today and found quite a few discoloured leafs.
any help is much apreciated.
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only thing i did yesterday was feeding them with 1 liter each of ph7 water containing 0,3ml floragrow 0,5ml floramicro 1ml florabloom.

any suggestions? would hate for this to become a big problem.

also ive sprinkled some fine powdered garden lime on top of soil to stabilize the ph.

runoff ph is 5,1

thank you

potassium def, and raise the ph to at least 6.2

runoff ph? i have no idea how i can ph test the soil..

cant exactly dig a hole in my pot and disturb roots though. so you think its a ph issue?

over fert possibly. I always look at marijuana-seeds.net/Thanks-ThankYou.htm to diagnose some of these problems. I know rollitup probly got it own problem solver but being new here I cant direct you to it. Sorry!. If the link isnt allowed then just remove it. cheers

that was a nice link, still cant deside wich def it could be lol.... maybe its just sensitive to nutes and is getting burned.. i dont know..

its just so odd that pretty much all foliage looks good except theese 5-6 that looks like this. so 5-6 out of 100++

any problem like yours can be a bit of a mystery lol. i was looking at pic2 or pic3 in the link and thought the leaf looked like yours do. maybe not tho. whatever the problem is i wouldnt worry unless it spreads and gets worse. im no real expert but have a dozen or two grows under my belt..anytime anything like this happens i just try adding water and no nutes a couple of times..kinda figure that adding nothing is less stress than adding this that and the other to correct things..unless its yellowing issues which would need the nitrogen things will hopefully just die off and balance out in the end

obviously keep an eye on things and see how it looks tho mate. Any chance of spending a tenner on biobizz bloom?.imho its a much easier and more of a user friendly nute to work with than most others. anyways good luck man

thank you for the input buddy, seriously have allready considered switching nutes. it seems like its very easy too overfeed this stuff. also hard too find a feeding program thats suited... ive seen over 5 different feeding programs from ghe for soil and they are miles apart..

i will feed them straight up water for about a week now and see how the new growth looks.

thank you again for taking the time to help a fellow grower +rep