Im at week 4 of veg. Under 600w gavitas. Lights are 3 ft away from plants. Im in 3 gallon pots. Soil is a mix of Ocean Forest and Sunshine #4. I just started noticing my plants going yellow. And new growth is looking very weird. Growth has tremendously slowed down. I fed 1 time with Floranova grow. Im thinking I have a Ph problem that is causing lockouts. The run off is ranging from 700 to 900 ppms. I just flushed. Im not too certain on the issue. Any help appreciated.
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NoWaistedSpace
Well-Known Member
Roots are drowning. Staying too wet, let the plant dry our some. Flip it over and break the seal of soil and container wall. Drill bunch of roughly 1/4" holes up the sides of your containers. Just my .02. Good luck!
You seem to be having an issue with magnesium and phosphorus. The two elements do work hand in hand, so if you're low on magnesium, next up will be low on phosphorus as Mg carries P through the plant. You say your ph may be off? Why? You have only fed once..what would have caused your ph to be that off?
polishpollack
Well-Known Member
probably time to transplant. how much floranova did you give? High fert loading would drop the pH.
wizard cabbage
Well-Known Member
Flora nova will drop your ph it’s what I use . I’d say low ph and to much water . Don’t water till the pots are light .
LOL...he used it ONCE, just 1 feed, and that feed dropped the ph of the whole medium and decided to lock out only magnesium? Why not calcium as well? Oh man, you sure it's not radiation from the constellation Centaurus causing some issues?
It's based on people offering advice that makes zero sense and will only steer new growers down the wrong path. it's like saying your car isn't starting because your tires are bald...the 'advice' and suggestions are often wrong, which is ok, but to inject things that make zero sense just for the sake of what? Posting something? If help is offered, it should at least come from someone with enough knowledge to be able to help a grower properly, not by idiotic suggestions...it's obvious he didn't even read the OP, otherwise, why would someone say that floragrow lowers ph, and that's the problem..he fed once! Not sure why you're going dr. phil on me..what is it to you what my emotions are behind my posts lol.
Bernie420
Well-Known Member
That right there is the exact reason why I put aluminum foil in my baseball hats.
Bernie420
Well-Known Member
Like others have said low on the mag. 1gr per gal of epsom salt. then after it gets better maybe 1/2gr per gal as a maintenance dose. Get some microbes in there as well.
Tangerine_
Well-Known Member
Oh boy. Yes. It does appear to be pH related. FFOF is notorious for low pH and you cut it with Sunshine #4 which is peat based and will dive when overwatered/flushed. (I'd amend the next batch with a little dolomite lime)
Flora also has a very low pH. Did you adjust before feeding?
Do as NoWaisted suggested and let your medium dry out. As it dries the pH will climb a little bit. It wouldn't hurt to inoculate with some microbes/bennies but wait until those pots have dried a bit. Cannabis hates having cold wet roots. (mag lock-up)
In the mean time you could foliar. That might help green them up a bit and you should also do a quick slurry to get an idea of where the pH is at. If it were me, I wouldn't add anything to the medium until ya gather this info.
GL
Flora also has a very low pH. Did you adjust before feeding?
Do as NoWaisted suggested and let your medium dry out. As it dries the pH will climb a little bit. It wouldn't hurt to inoculate with some microbes/bennies but wait until those pots have dried a bit. Cannabis hates having cold wet roots. (mag lock-up)
In the mean time you could foliar. That might help green them up a bit and you should also do a quick slurry to get an idea of where the pH is at. If it were me, I wouldn't add anything to the medium until ya gather this info.
GL
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NoWaistedSpace
Well-Known Member
I been growing for over 40 years and I still "over water" at times. It begins a "domino" affect.
VPD is very important also.
ffof is also peat based..you neglected to put in that sunshine #4 also contains lime which helps keep ph stable...not to mention ffof has ewc and oyster shells, which also stabilizes ph!
Tangerine_
Well-Known Member
Oh FFS.
FFOF has added peat, yes. But its also amended with some organic matter. Its notorious for pH instability and a simple google search will bring up countless reports to back that claim.
Sunshine #4 has a small charge of dolomite. No where near enough to retain a stable pH for any amount of time...especially when adding bottled nutes or flushing!
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LOL..you just contradicted yourself if you know anything at all! "FFOF has added peat, yes. But its also AMENDED WITH ORGANIC MATTER. Its notorious for pH instability" By that definition alone, the organic matter will keep ph stable and not allow large swings from its base! Anyway..no time for this...good luck OP, do some research yourself before commiting to change something that doesn't have to beOh FFS.
FFOF has added peat, yes. But its also amended with organic matter. Its notorious for pH instability and a simple google search will bring up countless reports to back that claim.
Sunshine #4 has a small charge of dolomite. No where near enough to retain a stable pH for any amount of time...especially when adding bottled nutes or flushing!
Bol!
Tangerine_
Well-Known Member
I haven't contradicted myself. Organic material doesn't stabilize the pH. A healthy micro herd does. Perhaps you should take your own advice if you don't even have a rudimentary grasp on living organics or microbiology.LOL..you just contradicted yourself if you know anything at all! "FFOF has added peat, yes. But its also AMENDED WITH ORGANIC MATTER. Its notorious for pH instability" By that definition alone, the organic matter will keep ph stable and not allow large swings from its base! Anyway..no time for this...good luck OP, do some research yourself before commiting to change something that doesn't have to be
We agree on one thing though...the OP should absolutely, unequivocally do some research before changing anything. The advice about allowing his medium to dry and inoculating doesn't "change" anything. Doing a slurry to get an idea of his pH?...again, doesn't change anything.
NoWaistedSpace
Well-Known Member
Microbe lives matter too! lol
Your soil ph will take care of itself if you have a healthy microbial system. I hardly ever use a ph meter. get you some Mammoth P and Recharge or Brix. Feed your microbes and they will feed and take care of your plant.
Tangerine_
Well-Known Member
Haha. They do matter! And with a soil like FFOF, adding a little food will jump start them into colonizing.
Real Growers Recharge is good stuff!
NoWaistedSpace
Well-Known Member
I have my moments. lol
But seriously, whether you're growing in soil,FFOF,Sunshine #4, or with those damn "Pine Needles" covering the top, it's about keeping your "microbes" fed and happy. The roots tell the microbes what they want and the microbes run and fetch it, unless the microbes have decided to take off work that day, or they have gotten lazy from a life of being "bottle fed". lol