what is this on my grow tent wall ?

[biggerbud420]

i saw this tonight when i checked my plants is it mold mildew or what
my humidity is way low 30's 40's low nothing i can do about it
there is no standing water that stays in the tent
it has been 4 days since i watered any plants in the tent
i did not notice this yesterday in the tent
i did wipe it off i have plenty of wind in the tent 6 inch exhaust and a 6 inch intake fan and a 9 inch table fan

 

[30roll]

I got PM on my Lemon Balm from leaving the Plant outside on cool nights and bringing it inside.
It decimated it. I had to cut it all away to the bare dirt and hoped the Roots were still good. It did grow back tho..
Don't get PM..

 

[Moe.Red]

Is there a humidifier? Using a spray bottle?
I’ve never seen pm grow on a clean tent wall at such a low RH I seriously doubt that’s it

brand new tent by any chance?

 

[biggerbud420]

Is there a humidifier? Using a spray bottle?
I’ve never seen pm grow on a clean tent wall at such a low RH I seriously doubt that’s it

brand new tent by any chance?

no humidifier in the tent and no spray bottle used either i have used the tent for about a year without taking it down or cleaning it between grows

 

[Moe.Red]

Man I really don't know what that is. I suppose you could lick it and see if it tastes like salt lol

 

[Homesteader]

My guess would be a carbonate from evaporated water but it certainly looks a bit odd. Do you use a lot of epsom salt? Is your water hard?

 

[hawkman]

as long as you have good circulation no worries !!!!!!!

 

[biggerbud420]

i put epsom salt on them 1 time and water is hard but not to hard lol

 

[TheMaverickFarmer]

Do you use UV light? Almost looks like the material is having a bad reaction to something. Thinking might be a bad batch or something and could be reacting to uv's? Just a thought
puff puff:)

 

[Petrochemical]

Black light test dem stains? Lol just Joshin.
Which tent company?

 

[biggerbud420]

I had the tent for a about a year ac infinity 4x4 spider farmer sf4000

 

[Petrochemical]

Have u tried wiping it down with a Scott towel or something so u can glimpse what's being wiped off on a clean towel? May help

 

[TheMaverickFarmer]

Black light test dem stains? Lol just Joshin.
Which tent company?

 

[oLd1]

Try 50/50 mix Vinegar and Water spray and wipe it down. See what that does. Won’t hurt anything.

oLd1

 

[biggerbud420]

Have u tried wiping it down with a Scott towel or something so u can glimpse what's being wiped off on a clean towel? May help

i did wiipe it off last night