Extended Feeding schedule

Clutchcargo_1

Active Member
I'm a new grower on week 4 of veg using bubbleponics. After a rocky start (cold temps, crappy pruning, etc), it looks like I'm going in for another 4 weeks of veg. I've been following the schedule for general hydroponics duo blend. To extend the schedule, Ive doubled week 2 and will be doubling week 3. Should I just continue week 3 until I flip to flower?
Another thing... should I be using full strength as gh prescribes? It seems the pond climb well above this between top offs.
 

Dr. Who

Well-Known Member
Once a feeding chart tops off at any level. If your going to go on longer, follow the feed charts last given strength.

Um what does this mean?> " It seems the pond climb well above this between top offs."
 

NanoGadget

Well-Known Member
If your ppm climbs after feeding it probably mean your plants are uptake g water faster than they are uptaking nutes. I use the 3 part GH Flora series and I almost never run full strength. My technique so far has been to feed at 1/2 to 3/4 the recommended strength and then watch my ppm. A basic rule of thumb that j was given at the beginning of this grow (my first in hydro) is as follows:
Ec goes up, PH goes down=plants require less nutes.
Ec goes down, PH goes up=Plants require more nutes
Ec stable, PH goes up=Equilibrium=Good thang.
 

Clutchcargo_1

Active Member
I'm in week 2 of flower and scaled the nutes back to 75% of GH suggested or a beginning nute concentration of about 1000PPM.
Unlike the veg weeks, the pH is very stable day after day at about 5.9 and the PPMs are dropping by about 75-100PPM day. I'm topping off daily with RO water only.
Does this sound about right?
 

OldMedUser

Well-Known Member
I'm in week 2 of flower and scaled the nutes back to 75% of GH suggested or a beginning nute concentration of about 1000PPM.
Unlike the veg weeks, the pH is very stable day after day at about 5.9 and the PPMs are dropping by about 75-100PPM day. I'm topping off daily with RO water only.
Does this sound about right?
After you top up and check ppm you should add small amounts of nutes to raise the ppm back up to your target level. During the stretch your plants are feeding at their highest level ever and the daily ppm drop will slow right down once stretch is over.

I use pH Perfect nutes so never have to check pH and I'm not supporting companies like Miracle-Gro and Mon$anto/Bayer by buying their crap. GH, Gavita and Botanicare were all bought by Miracle-Gro a couple years ago using money supplied by Mon$anto which was recently bought by Bayer. All corrupt and destructive companies out to rape the planet in pursuit of corporate profits.
 

OldMedUser

Well-Known Member
Frickin spell check and bad English... It seems the PPMs climb well above [the prescribed range] between top offs.
Always check the ppm after you have topped up. As the water gets used by the plants the ppm goes up as it becomes more concentrated so you need to top up first to know what is the actual ppm of the full tank/rez/bucket. You must be doing that now to know how much the ppm drops each day.

:peace:
 

WeedFreak78

Well-Known Member
Always check the ppm after you have topped up. As the water gets used by the plants the ppm goes up as it becomes more concentrated so you need to top up first to know what is the actual ppm of the full tank/rez/bucket. You must be doing that now to know how much the ppm drops each day.

:peace:
If my water level drops but my EC goes up, I just top up with RO water to get back to my original EC, or slightly less knowing they aren't using it all, then PH it if it needs it. I've never brought a res back to full volume, then checked and adjusted it.

How would you figure out the nute dose needed to bring it back to the original EC?
 

Clutchcargo_1

Active Member
Thanks all, I find the top-off PPM is the same as the pre-top-off PPM so for now I'm going full strength.
On a different topic, I had no idea how full these girls would grow. my 2x4 tent is beyond capacity with 4 plants.
 

OldMedUser

Well-Known Member
If my water level drops but my EC goes up, I just top up with RO water to get back to my original EC, or slightly less knowing they aren't using it all, then PH it if it needs it. I've never brought a res back to full volume, then checked and adjusted it.

How would you figure out the nute dose needed to bring it back to the original EC?
I basically ball-park it. I use syringes to measure out exact doses and just feed in the same ratio. A little of everything that goes into a regular feeding. Might leave out some things like silica or CalMag if I think they've got enough for now but add the base nutes at least to get it back up around where I want it. 50 or 100ppm either way is close enough. They'll eat that down to target in a day or so anyway. I will usually do a top-up every three days, one complete nute change after the stretch and lower the ppm to around 300 a week or so before I plant to chop the tops off leaving the lower stuff for another 10 days or so to ripen up before taking the rest.
 
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