Starting my 4th week of flowering and my PPM is around 550. Each week I have added a little more nutes and when I empty the res the PPM goes down about 35 PPms.... Should I just keep gradually raising the nutes each week??? Also the drop in ppm from the start of the new rez change to about 6 days later is because my plant wants more nutes right ??? Is the 35 PPM drop a big deal?? I am at about 40% nutes using general hydroponics, should I go up to 50 % nutes next week ?? Or am I ok ??
Hydro DWC PPM Question
- Thread starter Meast21
- Start date
waterdawg
Well-Known Member
I would say your doin ok. A 35 ppm drop over a week is probably not a bad thing. I really know little about hydro as I am on my 4th grow but my plants drop about the same and they are happy, happy! I am running a bit higher at 700 tds @ .5 conv.. You could add a bit more but 50% might be alot, its hard to remove I have found lol. How do the plants look? If it was me I would leave it the same or maybe get it up to 600 and watch it. Is your pen .5 or .7 conversion? I think the normal level is around 1200 ec for the middle of flower but again I am just learning and reading lol.
superstoner1
Well-Known Member
I would say you are close to the sweet spot. III don't go over 600 in dwc.
wtf is this thread
I have read tons of forums and everyone speaks about having 1500-2000ppm nutes near the end of flowering, and everytime I put my DWC near 1000, it goes into complete shock and all the leaves get nuked. 700 ppm is the magic spot for me, through out the whole grow.
I have read tons of forums and everyone speaks about having 1500-2000ppm nutes near the end of flowering, and everytime I put my DWC near 1000, it goes into complete shock and all the leaves get nuked. 700 ppm is the magic spot for me, through out the whole grow.
superstoner1
Well-Known Member
I can run the same strains in aero. at 1200ppm with no issues but over 700 in dwc and they burn. With roots constantly in contact with nutes in dwc they need less
guerrilla medic
Well-Known Member
it sounds like you're doing perfect. i'd probably bump it up one more time. for most strains weeks 4-6 is when they're peaking out. personally after wk 6 i usually start dropping ppm about 10% per wk.
Ok so the goal is starting ppm with new rez change should equal the ppm at end of rez.... Another question say my ppm now is 550 and my tap water is 150 ppm. Does that mean my ppm is 550 or really like 400??
superstoner1
Well-Known Member
550........
hellraizer30
Rebel From The North
Wow 2000 lol no buano
Ninjabowler
Well-Known Member
These ran at 900-1300 at peak, no burn ever. Never had a single leaf die that i didnt break. I think 950-1150 is the sweet spot depending on plant size
superstoner1
Well-Known Member
That post was for the op, not you dumbass. All strains are different and i was going by his measurements. But congratulations, I have many strains that could handle that ppm also, they just produce better at certain lower ppms. It's not plant size.
guerrilla medic
Well-Known Member
it really depends on the conversion rate of the meter(and strain). 1150 is incredibly high and would torch most strains i've grown if using a .5 conversion. however at .7 its right around where i peak for some varieties. [email protected]=2.3ec [email protected]=1.64ec
hellraizer30
Rebel From The North
Just because your plant can take said ppm strength does't mean thats where it should be for optimal plant growth!
all about dailing in
all about dailing in
Ok update:
Last couple times I set my PPM to 550 and it would drop to about 515. This last res change and set ppm to 550 and two days after it went to the same 515. Skip ahead 4 days today and the PPM was 680. Before this I made a new batch of news and I set the PPM to 775, is this a problem???
Last couple times I set my PPM to 550 and it would drop to about 515. This last res change and set ppm to 550 and two days after it went to the same 515. Skip ahead 4 days today and the PPM was 680. Before this I made a new batch of news and I set the PPM to 775, is this a problem???
superstoner1
Well-Known Member
It's still a positive increase and means they were taking more water. Just set it at 550it next time you start a res and just watch it. Don't add anything unless it changes by more than 50-75.