White stuff on the bottom of my rockwooled clones-mold?

Day 5 in cloning. Using a black tray with dome. clones sitting on bottom of tray not in a holder of any kind. Used Dyna Gro root hormone, I mist the dome and cubes, but i'm worried the cubes were to wet to start with. Looked on the bottom of the cubes for the first time today and notice some white stuff, it wiped off with a rag. dried off the bottom of the tray, and keeping an eye on it, should I be worried? +rep for any experienced help, thanks!

Show pics of the white stuff if possible, although it does sound like some time of fungus, also... Grab some h2o2 man! 2-3 mL's will dominate any mold

Thanks, schrubs, you rock eternally man! This riu vet, Roseman, said
Mineral salts or water salts.

Mold will stink, and be mushey like mucus and vERY slimey.

Mineral salts are gritty and just barely slimey.

It helped, a lot, it was defn not slimy or smelly. Once again riu homies banding together and helping one another, I feel so loved!

I rubbed the white stuff off with a dry rag, freaked me out man! how would you use the h2o2, in foliar spray, or sitting in the tray, etc. ?

Don't spray leaves, but you could dilute like a mL of h2o2 to a quart of water, and spray the bottom of the cube with that

oh, ok, great advice on disinfecting and protecting your clones, what a help. Gonna get some h2o2 for sure!

yeah its mold mildew fungus something like that i had it to it didnt kill anything increase ventilation if your over watering stop and i covered cubes with clay pellets so they wernt in light

beardo said:

yeah its mold mildew fungus something like that i had it to it didnt kill anything increase ventilation if your over watering stop and i covered cubes with clay pellets so they wernt in light

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are you sure it's not mineral salts. they rubbed right off, weren't slimey at all! also do you mean you don't think the h20h will work at all? if i increase ventilation, they haven't rooted yet! are you sure!

id take off dome now dont put fan directly on them i wouldnt worry to much shouldnt be salts you shouldnt be using nutes yet just water and maybe superthrive

will that be ok, they haven't rooted yet!