ppm and ph of soil question

Blitz35 said:

Thanks for the chart, but I've seen that a million times. I know at what ph nutrients get taken up..I was wondering if my ppm's are too low coming out. I don't know if I should flush or feed more. Flushing I thought is when too many salts have accumulated and thus it locks out nutrients and swings the ph down. if its not salts and overfeeding, then why do I appear to have deficiencies on both plants when im feeding at 750 ppm in veg. Im only using small cfl's and an old mars 300. I always ph the water to about 6.2-6.5, but I only now realized that it can be a bit lower since pro-mix is considered soilless and thus prefers a ph around 5.8-6. I don't have any ph down as my ferts always bring the ph low..i actually use silica to bring it up to that low-mid 6 range. Should I up the feed to 1000 ppm? Part of me wants to scrap both plants and just do the auto's..so much easier lol.

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Budzbuddha said:

Most " good " soils are buffered for PH with oyster shell , lime and or other material.
I have never seen the point of checking runoff is kinda moot - due to the fact that you have to water or feed so much in as to " check " what comes out .... What is happening is that you are CAUSING issues by the over saturation of the medium .

If you PH your water and feed mixes prior to use , you will eliminate most issues .
Also the strength of your mixes will have to be determined PRIOR to adding - just because one plant can tolerate a mix doesn't mean the other plants will like it. You mentioned a dark green plant ( sounds like N TOX ) which goes back to your feeding and your ppm range. Most feed schedules ARE GUIDES ONLY under optimal conditions .

I say forget flushing - drowning an already stressed plant makes ZERO SENSE.
I would wait til pot container goes dry completely THEN water only ( not dripping wet but a light watering ) to allow root to get oxygenated and correct PH issue. You will never fix them if you keep dumping stuff down its throat.

As far as regular photos - soils WILL TAP OUT over the entire grow , and plants stress if they cannot pull what it needs. I give my photos veg Nutes up to week 2 of flip ... Then bloom.

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Blitz35 said:

Thanks for the chart, but I've seen that a million times. I know at what ph nutrients get taken up..I was wondering if my ppm's are too low coming out. I don't know if I should flush or feed more. Flushing I thought is when too many salts have accumulated and thus it locks out nutrients and swings the ph down. if its not salts and overfeeding, then why do I appear to have deficiencies on both plants when im feeding at 750 ppm in veg. Im only using small cfl's and an old mars 300. I always ph the water to about 6.2-6.5, but I only now realized that it can be a bit lower since pro-mix is considered soilless and thus prefers a ph around 5.8-6. I don't have any ph down as my ferts always bring the ph low..i actually use silica to bring it up to that low-mid 6 range. Should I up the feed to 1000 ppm? Part of me wants to scrap both plants and just do the auto's..so much easier lol.

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Blitz35 said:

even the smell has gone away in most part. It had an odor at 2-3 weeks old already, and now the past month..hardly anything at all..even when lights go out..usually for 10 minutes its a strong 'vegetative' smell, and for weeks virtually nothing. It's not hot anymore, so it can't be the heat, temps are upper 70's in the day..lower 70's at night..humidity is around 50%. I was sure the soil was acidic, but it's not..seems to be right around 6.8-7.0..which may be the issue since im in pro mix..I was wondering if I should drop it to 6.0. Too many variables are possible, its why im not even sure if I should flush, since I have no idea what caused this..i won't be able to prevent it after the flush either. I think im throwing the silica and bioroots away, as these are the only two things I added the past 2 grows, and the outcome was not great. My best result to now was using just micro and bloom 1:2 ratio, nothing else, plant grew to 4.5 oz's under same setup with great smell and potency. The last 2 grows..plants have gotten bigger..last grow was 12 oz's with 4 auto's under the cfl's and mars 300, but quality was not the same at all. 1 plant was good, the other 3 were satisfactory at best..low trich production and poor bud appearance. I guess i'll find out by the weekend. I'll see what happens to this dark one I fed stronger today..if that one and the other one don't improve..i'll flush..feed almost nothing and put it into flower..when it yellows and looks like it wants to die..i'll feed it..then I know it's underfed lol.

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Lordhooha said:

All things aside I think given what you've said you may want to step back and reevaluate your growing practices. Your causing more harm than good. Good growers generally have well established practices and fairly structured regime for their rooms.........at least I do. I have everything in a logbook date and time logged and everything I did wether I watered to when I cleaned to whatever the exact amounts of nutrients I fed my plants.

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TCH said:

The butthurt was strong on this one. You asked advice and got quite a bit but it wasn't what you wanted to hear. You were worried about what was coming out instead of what was going in. You were feeding with pH 7.5 water. That's 7.5 going in. That's too high for soil or hydro. It doesn't allow anything but nitrogen to be taken up. Who gives a shit about what's coming out if what's going in is that wrong?

I would be willing to bet that if you let your pots dry out, used the exact same feed you have been using but pH'd it to 5.8 and watered til runoff, you will see your plants start to come back pretty quickly.

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TCH said:

I'd like to see pictures before and after. I hate to see plants die due to ignorance or stubbornness.

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