PH headache

R

ringanator

Member
well guys I can not keep my ph stable to save my life I am growing rdwc in hydroton from seed started in rockwool cubes presoaked in ph 5.6 for a day I am 3 weeks into veg, my nutrient solution is made up of Ro water, 2 part dual fuel nutrient, cal-mag, and silica ph'ed and bubbled for 2 days re ph'ed prior to res change target ph is 5.8 within 12 hr it 6.8 redose res with dilute ph down to a 5.6 and it back up to a 6.8 in 12 hr....so frustrating almost tempted to say screw it and buy an auto doser. any suggestions I know there's tons of stuff on ph and read most of it but there must be something I am missing.
 
SouthCross

SouthCross

Well-Known Member
When the PH raises that fast. It's a bacteria bloom. Did you take the filter off the water pump and clean the nooks and crannies? Then run it in a separate bucket with bleach and water? Were the air stones cleaned in between crops? Does the air hoses and sides of the rez feel overly slimy? Are there bubbles that take a while to pop? They hang on the surface of the water like it has soap in it?
 
InTheValley

InTheValley

Well-Known Member
man, if your battlin PH now, its going to be a nightmare for you from here on out. water temp? 65-68 is a must. Airstones also raise PH,

I know how your feeling. I did DWC, not successfully, because of PH issues. Now Im coco, still had issues with PH, Using FoxFarm. Couldnt take it anymore, and got PH perfect AN nutes. To much stress with PH issue bro. So, now, No issues, and alot of FoxFarm nutes left to sit and rot,.. wasted 2 months on PH BS,
 
R

ringanator

Member
InTheValley said:
man, if your battlin PH now, its going to be a nightmare for you from here on out. water temp? 65-68 is a must. Airstones also raise PH,

I know how your feeling. I did DWC, not successfully, because of PH issues. Now Im coco, still had issues with PH, Using FoxFarm. Couldnt take it anymore, and got PH perfect AN nutes. To much stress with PH issue bro. So, now, No issues, and alot of FoxFarm nutes left to sit and rot,.. wasted 2 months on PH BS,
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water temp is 69-72
 
R

ringanator

Member
boilingoil said:
Sterile rez or microbe additives?
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sterilized whole system yesterday complete tear down boiling water and alcohol 99% let it all dry out resetup 3 days nutrient were bubbled and ph'ed IDK my lights haven't even done 18 hr cycle since resetup and ph was 6.8 only thing that was not sterilized was net pots and hydroton clay because of the plants
 
InTheValley

InTheValley

Well-Known Member
ringanator said:
water temp is 69-72
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JMO, from what Ive gathered over several DWC threads, thats to high. 65F is the money spot. 70F is the threshold of Too warm. Oxygen breaks down extremity fast at 70F. Mind you, Im no wizard of DWC, but things go down hill after 69F. And it takes 3 weeks or 4th node before it starts to really show temp fatigue.

Good luck tho man, hope you get it all squared away,
 
R

ringanator

Member
InTheValley said:
JMO, from what Ive gathered over several DWC threads, thats to high. 65F is the money spot. 70F is the threshold of Too warm. Oxygen breaks down extremity fast at 70F. Mind you, Im no wizard of DWC, but things go down hill after 69F. And it takes 3 weeks or 4th node before it starts to really show temp fatigue.

Good luck tho man, hope you get it all squared away,
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I will reduce my temp and see thanks....
 
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