White stuff on top of grow meduim/coco

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southbayLA154

Well-Known Member
So this morning i woke up to find some white stuff on top of the meduim .. happend over night my rh has been fluctuating between 65-71rh .
I did use great white about a week ago.
I beleive i read that great white and others can cause this and tht it a sign tht its working but i can be wrong ..

Any thoughts? 16119559542077993229545675785914.jpg1611955978366542111753783031343.jpg
 
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93OG

Well-Known Member
Looks like salt build up. Run more nutrient solution through the medium when you water. You need to flush out the old stuff for the new stuff to work right
 
Beehive

Beehive

Well-Known Member
What is that? Because it doesn't look like coco.

No idea what those chunks are.

You need to call the guy that sold you that.
 
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Summerofsam

Member
Doesn't look like coco to me. Could be mold but it could be Mycorrhiza. Which is added to the soil/coco. Send us a pic of the bag of your grow medium.
Doesn't look like salt build up to me. And you are fine to run 60-70% rh in veg just add a fan for better airflow.
 
getogrow

getogrow

Well-Known Member
Knowledgeplague said:
High RH with poor ventilation can cause white mold on soil or coco or just lower your humidity and keep a wet to dry cycle you'll be fine though rub it off throw it out not a problem
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This should fix your issue. i think its regular mold. Ive seen what i think is myco growing on top of them medium and thats not it.
looks like regular ol peat or coco to me. :confused:
 
getogrow

getogrow

Well-Known Member
southbayLA154 said:
Should i transplant into some roots organics ? I got some .. i need to transplant a few .. should it be okay to go from coco to soil
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Those are still little , i would wait to transplant them....just let them dry out real good between waterings.

If you really think the medium you are in is causing you issues then its ok to transplant them into roots organics. Roots organics IS coco. (coco based with a bunch of good shit to make it a good "soil")
 
getogrow

getogrow

Well-Known Member
20210117_134129.jpg
All coco is not cut the same. This is my coco. Its not ground to a dust like most mixes are.
This particular type is "chunky and long fiber" , it can be used as perlite if you want. Thats my use for it.

The most popular type is ground up fine like most peat moss blends. It has way better water retention then my mix.

soil :joint:
 
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southbayLA154

Well-Known Member
getogrow said:
Those are still little , i would wait to transplant them....just let them dry out real good between waterings.

If you really think the medium you are in is causing you issues then its ok to transplant them into roots organics. Roots organics IS coco. (coco based with a bunch of good shit to make it a good "soil")
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Alright got it , so i water roots organic like soil right wet to dry 6.2-6.5 ph ..
Not too worried bout it me .. i do have a single plant tht definitely needs a transplant but its mostlikely a male tho cause of the fast growth ..
its just ive never seen it before and im learning .. are they even on track? Day27 week 4 from seed.
 
getogrow

getogrow

Well-Known Member
southbayLA154 said:
Alright got it , so i water roots organic like soil right wet to dry 6.2-6.5 ph ..
Not too worried bout it me .. i do have a single plant tht definitely needs a transplant but its mostlikely a male tho cause of the fast growth ..
its just ive never seen it before and im learning .. are they even on track? Day27 week 4 from seed.
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Yes, treat it just like a good soil.
They look fine to me....they are a little on the small side but i see nothing bad going on. The newer mix will also provide the food that you are not right now. (if your in plain coco)
 
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Summerofsam

Member
getogrow said:
let them tops dry out a lil more if your going to stay in the same pots. thats mold.
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After I posted I looked up his post history and in another thread he mentioned this showed up after he used great white. That is definately mycorrhizae not mold. But he did not provide that info in this thread.
 
getogrow

getogrow

Well-Known Member
Summerofsam said:
After I posted I looked up his post history and in another thread he mentioned this showed up after he used great white. That is definately mycorrhizae not mold. But he did not provide that info in this thread.
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Thats not myco. myco does not grow like that without a host.
 
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