3 jack h and one bubble gum auto from ilgm.
Ffof and happy frog/vermiculite and bone meal - ph to 6.2-6.5
Fox farms trio and cal mag
Recently gave a 1/4 feeding of tiger bloom and cal mag after a few weeks of plain water as runoffs dropped below 1500 ( 2200+ when nutrients were stopped )
Everyone is a bit dry today so as i was checking out the plants this is what i saw.
Do i just water with plain ph water - check the runoff and go from there or am i missing something obvious
Welcome ! looking at the 4 plants the one on the right front seems to be pretty happy.
An on the left front definitely nute burn. Water to run off on all 4 plants check PPM an PH To make adjustments accordingly. With auto plants i tried to go easy with the nutes. good luck 
I watered to runoff last night - with all of them being in the 1600-1700 ppm runoff - i did not ph the runoff
Continue to water to run off with PH water next time. are you doing the Fox farm trio schedule with flushes. To prevent salt build-up.
I’m not familiar with any foxfarm products. The Ideal pH for nute uptake in cannabis is 5.8 to 6.5. I always adjust the pH to 5.8 to 6.0 now. I did the same as you before and encountered similar issues. Until @moderators told me to lower it a bit.
I was under the impression i was trying trying to match soil ph -
I have no issues giving it a try
I have been loosely following the schedule- only getting to about 1/4 strength doses -
I have flushed once but i did not check ppm as i flushed as im still learning
Probably due for the next flush this up coming week
@Wades-concrete another thing I personally would try is getting my pH up to 6.6-6.7
Raise the Ph of water going in?
Gentlemen above is suggesting to lower it and your are suggesting to raise…
Once plant goes into flower, like these, you will start to see leaves degrade on most plants. Your TDS values in soil are actually a bit low (soil buffers differently) but with autos you want to go light on nutes. Affected leaves won’t recover and plant isn’t pushing any new growth other than flower so will be a bit tough to see improvement. I would continue supplementing high P and K at around 800 ppm, PH’d to around 6.0.
So i should continue feeding with the tiger bloom at around 800 ppm?
I have to disagree with above. Since your in soil and not coco you should have your ph between 6.3 to 6.8 with 6.5 as your sweet spot. Also, it sounds like you were not following your sledgehammer flushes, so if your feeding with neuts and your runoff is much higher then the 800 going in, your locked out, and need to flush. If you do not have sledgehammer, then run 6.5 ph’ed straight water untill u get your tds down well below a 1000, and follow with a 1/2 strength feed immediately after and then let dry out and resume your course. Best of luck
Soil buffers differently. Once depleted (which it is) it needs to be treated like soilless and supplemented. In addition as plant matures roots die off in the medium, rendering it more and more acidic. I would expect HF to run close to 3,000 ppm in veg for example.
I PH everything to 6.0 and get great results.
I am currently a few days shy of the end of week 8 - so according to the schedule i am a week behind on another flush.
I should be ready to water by Saturday and can have sledgehammer here by then.
Like i mentioned above at week four i did water with 6.3 until i filled the trays with runoff twice - i dumped them before i I thought about measuring the tds
Two weeks ago i watered to run off with 6.34 and 204 tds going in.
Jack 1 - 6.24 -2440
2- 6.14 - 2450
3- 6.11 - 2840
Bubble gum- 6.19 - 2910
Take a look at my runoff numbers above from 2 weeks ago and let me know what you think sir
I usually advise in soil when your runoff TDS gets to 2,000 ppm or so to supplement. You could do water only until it drops to that value then resume feeding.
Especially with FF nutes which tend to build salts.
Flushing is over rated as it washes those expensive nutes down the drain.
I grow in coco with Jack’s and don’t even bother watering to runoff any more. In fact I’m using an automated watering setup which doesn’t water to runoff.
Soil does buffer different, thats y his tds out is so much higher then in. I was not going to quote you b4 but for some reason you are calling me out. Sorry if i offended you. Im not going to argue with you i have too much respect for this site. Lastly you absolutely need to flush with fox farms, i learned the hard way in the beginning. Fox farms is not jacks! @Wades-concrete , ignore what i said he has you covered and im wrong. Best of luck
Not calling you out: disagreeing, yes.
Having used it myself, yes. BUT! Monitoring your runoff TDS circumvents a lot of stuff called for as you have more data than they really expect you to have.
Seems to be a few different schools of thought on this post from others as well -
Just not sure what route to follow at this point
Absolutely. The best thing to do is pick one person and follow them. There are a number of folks who do a great job, autos in particular my first suggestion is @Not2SureYet . @HappyHydroGrower and @merlin44 and @AfgVet are some other mad growers.
