Switched on 1 year hydro newb needs help

4sheezy

Member
Hi Everyone.
I've had this problem with my leaves for like a year (since growing hydro) i'm thinking it might be a lockout problem i was after a bit of guidance, please.
I'm growing some O.G Kush in a DWC system. 1/2 strength Advanced Nutes connoisseur ph perfect with 2 mars 700 LEDs. A big arse 150mm extrac. fan with carbon scrubber and a 100mm intake fan and a couple of 100mm desk fans moving the air around.
I'll say now that i used to use the Canna range of nutes and i was fussy AF with checking ph keeping it at 5.7 to 6.0 but i still got this problem. Since switching to AN PH perfect i no longer check PH because, well... but i still have the problem.
Last few grows i was smashing them with cal/mag and it seemed to help but i think it was only a bandaid fix. This grow i have used cal/mag only once and it seemed to make it worse.
I have some questions about the res. How often should i change the water and nutes over? Should i be topping up with nuted water or just fresh? Should they always be drinking nuted water or should i give them say a week of fresh water periodically?
Currently i change water and nutes every 3 weeks and top up with nuted water. All at 1/2 strength. I keep the EC at 2.0 but in heavy flower i will bump it up to 2.5 to 3.0max!
I'm sure i have more questions but we'll start with these ones.
Thanks in advance :-)


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4sheezy

Member
Hey bobtokes thanks for your reply. Can i please ask you to elaborate a bit more?
So you are saying to raise the PH a couple of times a week. With the DWC res. i would add PH up and leave it there for like a day then add some PH down and leave it there for about 2 days then repeat. Is there a problem with adding that much PH up and down all the time?
 
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