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Finally

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Finally

Srenots 14,428 Replies 1,069,170 Views
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#1,265
GG4 ....
Gg42weeks21717
 
#1,273
Srenots said:
Blue Magoo ...just fed

View attachment 692239
Click to expand...
has it got a rising pH that one buddy? If you can, run some low pH water passed her. Looks to me like you are pushing a 7.3+ there from experience, (I have had many plants look like that one and over many years I determined it to be bacterial and a product of respiration through excessive bio film creation) Are the stems a bit stiff and reddening? No way for sure unless you check any run off or rhizo.
I find NH4+ quickly converted to NO3- at these ranges and if there is abundant Cal in either water or substrate the buffering of the cal leans the media to NO3- which in turn loads the pH upwards to base and beyond. There is typically an adjustment period when using new media and biology and sometimes those bloody bacteria dont play ball within our timeline.
This is natural, but faster younger plants seem to quite like higher NH4+ levels imo and also ready access to both P and Fe which can also go a bit west if the N conversion to NO3- is too rapid.
You can check this by running a CO2 burst test. If you have excessive respiration of bacteria, you may be leaching any inputs of N and conversely, if you havent enough, eg below 90ppms CO2-C, you bacterial conversion of N will stall.

You might have a bacteria bloom pushing pH, this is typically what I find when I see a stiffer leave stem and a bit of red, so may be run a 36 hour tea, like 6.0-6.3 or something with fish /starch, to build up the higher microbes (protozoa) to swipe the bacterial counts down. You may find you get a blast of CO2 and NO as this works through, so just keep your N inputs down while it adjusts to the soluble NO and dont dry the media out. The tea once the bacteria are under control, will boost fungal counts and reduce overall pH mate.
if you let the media dry, we get mass desiccation and a higher salt build up around the root zone, esp if its warm and dry air too.

I find my pH climbs if using peat with microbes and any BSM based feeds early doors. The sugars super boost counts of bacteria who grow first and fastest which then out compete slower growing fungus for the food sources. i get more pests across the grow too notably, so i tend to focus on Kelp etc in the beginning, this is a harder source for bacteria to get into, so provides a better environment for fungal mass dev.

Signs from pH for a biologist. Higher counts of bacteria produce more bio film which has a higher pH than we might often like with MJ. As the pH goes up, stems get stiff, red and leaves droop. As the plant struggles to access the Fe and P, you may notice a yellowing or fading out, again fungus boosts will help address this.
Fungus secrete Oxalates which lower pH and help free up bound phosphates, both mineral and organic for transfer to our plants. So as a general rule, a soil where the ratio of microbes is 1(f):1(b) we will find a near neutral pH, where fungus is higher, we find more acidic soils and where bacteria are dominant we will find Alk-Sol

:-)
 
#1,274
Ecompost said:
has it got a rising pH that one buddy? If you can, run some low pH water passed her. Looks to me like you are pushing a 7.3+ there from experience, (I have had many plants look like that one and over many years I determined it to be bacterial and a product of respiration through excessive bio film creation) Are the stems a bit stiff and reddening? No way for sure unless you check any run off or rhizo.
I find NH4+ quickly converted to NO3- at these ranges and if there is abundant Cal in either water or substrate the buffering of the cal leans the media to NO3- which in turn loads the pH upwards to base and beyond. There is typically an adjustment period when using new media and biology and sometimes those bloody bacteria dont play ball within our timeline.
This is natural, but faster younger plants seem to quite like higher NH4+ levels imo and also ready access to both P and Fe which can also go a bit west if the N conversion to NO3- is too rapid.
You can check this by running a CO2 burst test. If you have excessive respiration of bacteria, you may be leaching any inputs of N and conversely, if you havent enough, eg below 90ppms CO2-C, you bacterial conversion of N will stall.

You might have a bacteria bloom pushing pH, this is typically what I find when I see a stiffer leave stem and a bit of red, so may be run a 36 hour tea, like 6.0-6.3 or something with fish /starch, to build up the higher microbes (protozoa) to swipe the bacterial counts down. You may find you get a blast of CO2 and NO as this works through, so just keep your N inputs down while it adjusts to the soluble NO and dont dry the media out. The tea once the bacteria are under control, will boost fungal counts and reduce overall pH mate.
if you let the media dry, we get mass desiccation and a higher salt build up around the root zone, esp if its warm and dry air too.

I find my pH climbs if using peat with microbes and any BSM based feeds early doors. The sugars super boost counts of bacteria who grow first and fastest which then out compete slower growing fungus for the food sources. i get more pests across the grow too notably, so i tend to focus on Kelp etc in the beginning, this is a harder source for bacteria to get into, so provides a better environment for fungal mass dev.

Signs from pH for a biologist. Higher counts of bacteria produce more bio film which has a higher pH than we might often like with MJ. As the pH goes up, stems get stiff, red and leaves droop. As the plant struggles to access the Fe and P, you may notice a yellowing or fading out, again fungus boosts will help address this.
Fungus secrete Oxalates which lower pH and help free up bound phosphates, both mineral and organic for transfer to our plants. So as a general rule, a soil where the ratio of microbes is 1(f):1(b) we will find a near neutral pH, where fungus is higher, we find more acidic soils and where bacteria are dominant we will find Alk-Sol

:)
Click to expand...
Damn, I missed your posts. Always super technical but still very understandable. I feel like what you described may be what I'm dealing with in my veg tent. I have the red leaf stems droopy leaves and yellowing
 
#1,278
Ecompost said:
has it got a rising pH that one buddy? If you can, run some low pH water passed her. Looks to me like you are pushing a 7.3+ there from experience, (I have had many plants look like that one and over many years I determined it to be bacterial and a product of respiration through excessive bio film creation) Are the stems a bit stiff and reddening? No way for sure unless you check any run off or rhizo.
I find NH4+ quickly converted to NO3- at these ranges and if there is abundant Cal in either water or substrate the buffering of the cal leans the media to NO3- which in turn loads the pH upwards to base and beyond. There is typically an adjustment period when using new media and biology and sometimes those bloody bacteria dont play ball within our timeline.
This is natural, but faster younger plants seem to quite like higher NH4+ levels imo and also ready access to both P and Fe which can also go a bit west if the N conversion to NO3- is too rapid.
You can check this by running a CO2 burst test. If you have excessive respiration of bacteria, you may be leaching any inputs of N and conversely, if you havent enough, eg below 90ppms CO2-C, you bacterial conversion of N will stall.

You might have a bacteria bloom pushing pH, this is typically what I find when I see a stiffer leave stem and a bit of red, so may be run a 36 hour tea, like 6.0-6.3 or something with fish /starch, to build up the higher microbes (protozoa) to swipe the bacterial counts down. You may find you get a blast of CO2 and NO as this works through, so just keep your N inputs down while it adjusts to the soluble NO and dont dry the media out. The tea once the bacteria are under control, will boost fungal counts and reduce overall pH mate.
if you let the media dry, we get mass desiccation and a higher salt build up around the root zone, esp if its warm and dry air too.

I find my pH climbs if using peat with microbes and any BSM based feeds early doors. The sugars super boost counts of bacteria who grow first and fastest which then out compete slower growing fungus for the food sources. i get more pests across the grow too notably, so i tend to focus on Kelp etc in the beginning, this is a harder source for bacteria to get into, so provides a better environment for fungal mass dev.

Signs from pH for a biologist. Higher counts of bacteria produce more bio film which has a higher pH than we might often like with MJ. As the pH goes up, stems get stiff, red and leaves droop. As the plant struggles to access the Fe and P, you may notice a yellowing or fading out, again fungus boosts will help address this.
Fungus secrete Oxalates which lower pH and help free up bound phosphates, both mineral and organic for transfer to our plants. So as a general rule, a soil where the ratio of microbes is 1(f):1(b) we will find a near neutral pH, where fungus is higher, we find more acidic soils and where bacteria are dominant we will find Alk-Sol

:)
Click to expand...
ya i fucked up feeding other day....all good bro
 
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