yellow leaf problem please help!!

hi guys first grow for me, into my forth week and since the 2nd week i started to get a yellow leave problem i would say 20-30% of the leaves have this yellowy look to them and some have started to die at the ends and around the edges. i went to the local grow shop they told me to buy a digital ph meter to get a better reading! best buy yet!. my ph is between 5.8-6 but try to keep at six as the guy told me. the problem has not gone away i have only been putting in nutes that the table tells me 20-30ml of cocco a and b per 10l. anyway took some cuttins some had slight yellow leaves put them in a propegator with just wather at ph 6 and the yellowy colour on the leaves have nearly gone!???. do u think i should just us water for a bit in my main grow to leaves turn to normal or half the dose ive bin using???? any ideas???

Kinda sounds like you nute burned em.

I dunno what kind of grow setup you're using (soil, hydroponic, etc.) but generally you should start out your plants at about 1/4 - 1/2 strength nutes, and gradually build up over time.

But that's just my guess.

Whats your feeding schedule, what nutes are you using? And at what strength?

303 said:

Whats your feeding schedule, what nutes are you using? And at what strength?

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hi guys thanks for getting back to me got a 4 pot wilma on a drip system feeding 30 mins every 3 hrs in cocco. using canna a and b 20-30 mls per 10l of water and tht cannazym 20ml per 10l