Thanks for the info. Very important. I heard soft water and automaticly think of a water softener. Like the guys said it adds salt when treating the water another no no. What size pot are you growing in ? Do you transplant?
How many weeks are you into flower now ?
if you want to flush just use water with a ph level of 6 next time you feed. i use tap water but i usually let it sit for at least 24hrs before i check the ph and adjust
Your getting great advice, I can say from experience that Low and Budbrother both set me straight more then once. Ride it out another day let the questions come , itās pretty much narrowed down now. Iām just another set of eyes. I can almost Guarantee your next grow will be better
If your soft water contains salt you may have to use your RO and add a little CalMag to get 200ppm, then pH to 5.9 then water threw and repeat until your pH is 6.2-6.5, test ppm and if needed do the trio mix and feed with RO water and donāt use soft water.
Do NOT PH your feed water if using Advanced Nutrients pH perfect trio.
Thatās what I would do, if I was in your situation after all the reading all very great advice.
Iām gonna run the risk of sounding arrogant.
I think the heart of the issue is using a soiless/hydroponics nutrient line in a soil-based medium. Iāve had good success with the AN trio but not when I used a peat-based ammended medium such as happy frog or ocean forest.
Next time around give coco-loco a try! I think that would be a more suitable medium for the AN trio.
I hope you make it to harvest nonetheless! Salt build-up is a silent killer.
Overkill and agree with the others on these supplements creating issues. Cannabis likes a balanced diet and over feeding one macro nutrient can prevent the uptake of another or the uptake of a secondary nutrient. Keep it simple and feed the base nutrient with secondary adds if the base doesnāt contain these. 
Welcome to the community
Here is my 4x4 Tent, 7 plants all gonna get advanced Nutrients pH perfect, bud candy, big bud, overdrive, CalMag extra.
Spiderfarmer SE 7000 750w light 70%
Soil Promix organic garden mix.
Ok, so I did the flush last night prior to the ppm pen arriving and took a sample of the initial run off and the run off at the end of the flush. I flushed each plant with 7 gallons of 6.3 ph water with yucca extract added. After a gallon and a half I had run off.
PPM of initial run off was 1434 at a ph of 6.5
PPM of the final run off was 2348 at a ph of 6.2
How much water should I be flushing these with? I assumed 5 and a half gallons of run off would be enough, but itās looking like it needs a lot more. My guess is that the salts were pouring out in that final sample and still had plenty to go, but my pen just showed up today so I had no idea. Should I flush again today or wait until the pots dry up a bit?
Should I just chop these plants and start again?
Thanks for all the help, really appreciate the guidance from everyone!
What does your feed schedule look like? How many ml of each per gallon? I used 4ml per gallon till flower and then upped it to 8. Fed every other week after week 3. Do you flush mid grow? Thanks in advance
How much of the oyster flour do you recommend using? I am gonna get rid of the dolomite. Starting to think it is behind a lot of my issues, or at the very least isnāt helping.
It can take 10x the pot size(in gallons) with soils, easily. Iāve had to flush FF soil (happy frog) 70+ gallons of water per 5 gallon pot. You basically run it until you donāt need toā in one sitting. I spent 8-10 hours over a utility sink running tap through them. Typically if you are using yucca, you feed it in water only. Next feed/water start flushing.
This is why I got away from soil.
I battled fox farm everytime I ran it. Some luck out and have a good batch from the gate. Going forward if sticking with soils and synthetic nutrients get the medium in line before you plant, and track run off as you go- every time.
If I was to go soil again it would be organic living soil. IMO thatās when soil is worth it. Hate the headache otherwise.
Wow, I really underestimated the flush lol. What PPM levels do you recommend throughout the grow? I may try one more soil run to see if I can get the hang of it, if not I may just end up going back to DWC. Just got sick of mixing 5 gallon buckets like crazy in the last 4 weeks for the thirsty girls lol
Maintaining 800-1000 is a good rule of thumb but can vary either direction depending on plant and how well you control the environment, pot size, and frequency of feed.
I went coco with high frequency feed for this reason. Control matters to me.
I am using 15ml per gallon of the grow micro an bloom. I also use 5ml of bud candy and 3ml of CalMag.
Is my ppm for feed.
Whatās the context? Building soil I do 2:1 OF:Gyp mixed @ 1 cup cft to cover moderate and slow release.
If adjusting a future FF soil, Iād only be guessing without testing. Youād probably be safe adding 3 tbs OF & 1 tbs Gyp. Can always add more Ca later if plants demands require. If so, add more Gypsum and not the Oyster Flour.
@Budbrother
Usually more then once thatās were I start running into problems adding bloom booster. I just added some āorganic boosterā hopefully I didnāt go over board.
@low did data guys runn off numbers look backwards? Probably me the one thatās backwards. Im trying to figure out why his ppms are going up. 7-10 hours flushing. Is your tap water city?
Like you said one 1 thing out of balance can cause a lockouth. And it sucks when it happens for sure.
@dataguy you ask if we think you should chop them and start over. Your call. It looks like your into your 5 week of flower, you already have much invested in this grow. Itās definitely a good teaching and experience for you. I would be happy with those run off numbers but I have already flushed from 3000 + down to 1200 and finish the grow out but I never had the exact problems your having. If they were mine , the way my case situation is for electric and things I would cut my losses But if thatās not a problem for you go 4 it finish them out. Good learning experience. All the info you got is spot on , on how to start to recover from this.
@Budbrother
Usually more then once thatās were I start running into problems adding bloom booster. I just added some āorganic boosterā hopefully I didnāt go over board.
@low did data guys runn off numbers look backwards? Probably me the one thatās backwards. Im trying to figure out why his ppms are going up.
7-10 hours flushing. Is your tap water city? Thatās a flush. I seen a video once and the guy got a pot big enough to submerge his plant and let it soak completely until bubbles stoped then tilted and drained. I never tryed it but looks ok, hopefully I will never run into another situation like that were I have to flush again but it looks like a good final flush if you do flush.
Like you said one 1 thing out of balance can cause a lockouth. And it sucks when it happens for sure.
@dataguy you ask if we think you should chop them and start over. Your call. It looks like your into your 5 week of flower, you already have much invested in this grow. Itās definitely a good teaching and experience for you. I would be happy with those run off numbers but I have already flushed from 3000 + down to 1200 and finish the grow out but I never had the exact problems your having. If they were mine , the way my case situation is for electric and things I would cut my losses But if thatās not a problem for you go 4 it finish them out. Good learning experience. All the info you got is spot on , on how to start to recover from this.
Good luck on whatever you decide. Sorry if I confused anyone. Thanks
@dataguy good time to get some seedlings started
I would like to follow you if and when you do another soil grow
Many times I was ordering gallon and 5 gallon jugs from the store. But it got a little ridiculous having all of them dropped off outside my house for everyone to see. (60) 1 gallon jugs looks a little sus. Lol. Turned to running standard tap, which at the time was around 6.8-7 pH. In my case I was trying to raise pH. Happy frog came with 4,000+ ppms and a pH of 4.x. I didnāt check before using it and battled problems throughout the grow. Even after flushing the ph kept sinking.. Eventually turned to dolomite lime in the beginning of flower and over the course of the flowering it gradually went up. Topping out at around 7.2 by chop. The buds made it, and pretty decent over all considering. This was several years ago.
Now, I mostly just use RO, and Iāll likely stick to my coco and perlite. lol.
