Mold

TMB77

Well-Known Member
um...yes.

whats of more concern is those sorry looking plants, and why you have mold on those cubes in the first place. I dont use rockwool, but i'm guessing you're keeping them too wet, the area too humid. is mold bad? the answer is never no. (unless you're producing penicillin or something)

as for the plants, i'm not sure whats goin on with them. have you grown a lot in the past, or are you trying out rockwool for the first time?
 

letshopetheygrow

Active Member
The two plants with alot of mold were bad from the last batch, but just haven't gotten rid of them.

no real grow experience, here and there stuff. but the rockwool setup is a new thing.

what problems could the mold cause for the plants.
 

TMB77

Well-Known Member
top soil on rockwool?

not a great idea reggaeboy.
i'll assume you meant....dig them out of the rockwool and transplant to soil?



That mold is currently sending out mad spores, which will find many suitable places on other rockwool cubes and propagate.

they will compete for nutrients, grow, exude (probably) toxic chemicals into the rockwool, etc etc. would you want any vegetable plant to be covered in mold?

if you ever get buds, and have that mold in the room, it will quite easily get on the buds, consuming them, making them unfit to be smoked, and all your effort will go down the drain. to be safe, you need to get all moldy things OUT of that room, destroy them, clean the room as thoroughly as you can.

mold is bad.
 

letshopetheygrow

Active Member
Hmm, k.

but no, i didn't mean topsoil on rockwool, just that it gets its water from the bottom, so i'm not sure how the top got so wet.

I've had people tell me that it was algae on top of my rockwool. any thoughts on that?
 

TMB77

Well-Known Member
thats mold.

and it was rastaboy who had the non-brilliant idea of putting topsoil on your rockwool.

like I said, I dont use rockwool, but i'm familiar with it. If you're watering from the bottom, the water is being wicked up to the top-parts as well I would assume.

what is the humidity in the room?
 

letshopetheygrow

Active Member
k, ill start removing as much mold as possible from the room. thank you for clearing it up, i agreed but a friend was telling me it wasn't problematic.

anything you could advise for cleaning mold problems that isn't complete restart?
 

TMB77

Well-Known Member
well...if you can physically remove the masses of mold and some of the rockwool underneath, and buy a good fungicide, and sort of coat all the rest of the rockwool with it, and clean all the walls....just, get straight up obsessive compulsive clean in there.

then you can wait and see if it starts growing anywhere else, if not...you're probably in the clear.

I suppose if it comes back you can keep trying to remove/combat it through the rest of the grow...but when you harvest make sure to take everything out of the room and start with new materials which have had no contact with the bad stuff.

I'm actually really curious to see if you can beat this mold problem in this manner. I work with (as in, for a job) sterile agar and plants grown in containers, and once you get even a hint of contamination it is all over, you have to get rid of everything in the container, there is no chance to save anything. but rockwool isnt agar, so I dont know how this will turn out.

good luck dude, keep me posted
 

letshopetheygrow

Active Member
i scraped as much as i could off the tops of the rockwool. covered the tops with foil. hopefully that will kill the green stuff there with no light and i scraped away as much of the white stuff as possible

i also got more fans keeping air moving in the grow room.
 
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Florida Girl

Well-Known Member
Is the mold on these cubes anything to worry about?
Mold is ALWAYS something to worry about.... and you CERTAINLY don't want to be smoking anything that had mold growing on it.

Mold grows quickly ... you can't do a half-ass job of getting rid of it either.
You may want to scrap those plants.... clean the room with bleach and start over.

Most of the pictures of rockwool I've seen the people have the tops covered with Tin Foil to prevent mold from growing. Plenty of fan power also helps.

Good Luck :)
 

letshopetheygrow

Active Member
thanks florida, i got the tinfoil on right now, just scraped it and put them on, hopefully they pick back up, but i have some clones going so if i have to scrap this grow im prepared
 
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