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HELP! Major PH issue

Capncanna

Capncanna

New member
I'm a week or two away from harvest and my ph is going nuts. Yesterday 6.0 this morning 4.9 . Wtf. I did lower my nutes to 1/4 after a nute burn then flushed a week ago. I'm flushing today and going to use half nute but wow this is nuts.
My meters are all calibrated and tested w 2 different ones. Any ideas? I know my buds are crying.
 
Gee, never had that happen with my hydro. It always ranges up due to the air stone adding 02 to the nutes.
I guess all you can do is monitor and adjust as needed. I check mine three times a day, always adjusting down.
My clone guy suggested pH 5-5.2 for a new variety, which I followed. It worked very well. The other plant I let range from 5 to 6 and that worked well for it.
Good luck.
 
Thanks , I never use ph up unless I screwed up. This started a week ago. Did a flush this morning and checked my air stones. They were under the root ball , so I moved them , maybe that was it. Got both res at 5.8 so we will see tomorrow. I run lights at night so daytime is sit and wait 😀
 
A good supply of 02 should keep your pH moving up. I've never tried to discover what would happen if I lost a good flow of 02.
Good luck.
 
I was having the same problems a week or so ago. Like it would drop to 4.9 from 6.1 in a few hours. I flushed her and started using Great White instead of Hydroguard (only because another grower said hydroguard was causing ph fluctuations in his DWC so I figured why not try) and it's been stable. A few others also told me my small res could've been the culprit as well. Hopefully you've got it under control though. Good luck!
 
Thanks , buckwold ,I've been using hydroguard and great white the whole grow. If it drops again tomorrow. I'll change and try just great white. It's making me nuts.
 
Do you have a smaller res? I battle with it constantly but only that one time it got really out of hand. That's why I just ordered a 3.5gal one site bucket to replace my 1.5gal tub.
 
I use a 2 gallon Water Farm by GH. Only downside I see is its best for one girl at a time and you really need to add .5 gallons of H20 morning and evening at some point in the 12 week feeding schedule as per GH. Very happy with the results.
 
I have 2, 10 gal res going w 2 plants in each. They were a breeze in veg but since about 4 weeks into flower it's been crazy. Pics in my thread.
 
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