Thanks bro, +Rep on the way. I'll keep you updated.

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Ok man, I believe I fixed it...we'll see. Last night my PH fell to 5.35. I had used 5ml of aquashield per gallon with my nute change out. After seeing it fall again I changed it out again. This time I added 15ml of Hygrozyme along with 15ml of Aquashield (per 5 gal of RO) to half strength nutrients. I set it at 5.83/389 PPM, this morning (lights off) it was 6.24/411 PPM. I think to PPM rise is due to "ppm creep" from my RO filter, but we'll see when the lights come back on.

Any suggestions or comments welcome.

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Hygrozyme and Aquashield together should work perfect. And yes, the rise in the ppm is a good sign overnight! I know it's an annoying problem, but at least it's a sign the bacteria are dying off! It's only been overnight, but I'm glad it was resolved. A lot of people would've just kept on adding ph up. I'm glad you posted your question and we got past the initial confusion. I knew it wasn't just that you didn't understand that the nutes lowered the ph. Haha

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"It picked up some dandy-lion pollen or something from your yard and popped out a bastard seed. " --Anonymous
Current Grow(s):DP White WidowFucking Incredible

Bro, I owe you big time. I believe you may have helped me save my crop.

The Ph held at 6.1. Tell me if this sounds strange to you though. I added a half gallon of 5.0 plain RO to top off a few minutes ago, and the PH rose to 6.25...but the PPM fell from 425 to 385. Does that sound right to you?

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It sounds about right to me. The difference between 6.1 and 6.25 is a horsefart. I wouldn't be concerned about that, fact is your reservoir is more stable now than it was before. I don't usually add already adjusted water to my reservoir by the way. Always seemed a strange practice. I just add water, add nutes, readjust ph and move on about my business.

All done in the reservoir itself.

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"It picked up some dandy-lion pollen or something from your yard and popped out a bastard seed. " --Anonymous
Current Grow(s):DP White WidowFucking Incredible

Yea, but adding 5.0 water should have brought it down I would think...Is it possible that adjusting with plain water without nutes could be it, as in the plants are trying to tell me that they need more food?

I'm in DWC, can't adjust straight in the res with the roots.

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I've done it in DWC and I've adjusted it directly in the water. Never been a problem, but I suppose it could be. The Ph should've dropped in theory. But such a small change is almost immeasurable. I wouldn't worry too much about it and I've definitely adjusted the PH of my reservoir in DWC directly. If you do it though, use a dropper so you don't "over do" it an have to make adjustments back and forth. One drop at a time until it gets where you want it shouldn't be a problem at all.

And a ph anywhere from 5.5 - 6.5 should be anyway. 6.2 should be just fine.

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"It picked up some dandy-lion pollen or something from your yard and popped out a bastard seed. " --Anonymous
Current Grow(s):DP White WidowFucking Incredible

Like I said before, I owe you alot. You've been a great help to me and I really appreciate you for that. Thanks alot brother....by the way, how long did it take to dry that big ass bud in your avatar?

If I could rep you again I would, I'll catch you in other threads though.

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laserbrn... I gotta rep you for the quick save too bro. I was reading through and thought for sure Mongo was in for a really big problem. You saved the day while giving me some helpful hints.

No worries, I'm really glad that it worked out for you. I'm always happy to help someone especially when I see it's an obscure problem that I know doesn't come up every single day on this forum. I spend a lot of time helping new growers, but I generally get more enjoyment from helping somone with something more unique and that I've actually seen before.

Anyway, now hopefully someday you can help someone else who has the ph dropping problem because I'm sure many have lost their crop to root rot and infection because they didn't catch that indicator and kept adding ph up. It just doesn't come up for everyone so it doesn't come by many answers.

Grow on and post some pics of your girls. That's the only thing missing from this thread.

That bud in my avatar took about 5 days to dry hanging and then another 2 weeks in the jars before I would really call it 'dry'. When they are that big you can't really get them 'dry' just by hanging. Need to slow the drying process to keep it drying nice and even. Back and forth between jars to preserve moisture and paper bags to absorb it. But as slow as I can without inviting mold.

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"It picked up some dandy-lion pollen or something from your yard and popped out a bastard seed. " --Anonymous
Current Grow(s):DP White WidowFucking Incredible