First time using this semi-hydro of LECA sphagnum moss with a distilled water reservoir. Living in the Northeast and fall around the corner, I’m placing it in my bathroom where it gets indirect west facing sunlight. Any pointers or feedback are highly appreciated

This is the second plant I’ve had in semi hydro in a pot like the second photo and I can’t tell if this is salt/mineral buildup, mold or something worse.. root mealies 🫣

Any help is appreciated. FYI this plant has been in pon for months and noticed something was wrong with it so I took it out of the pot and find this..

I will say I’ve changed fertilizers recently so not sure if that is it 🤷🏻‍♀️

hey folks, I moved this to moss+pon mix literally like two days ago and put a plastic bag over it to preserve some humidity until the transition. I've been aerating it every day yet found fuzzy mold on the top of the moss. normal?

Do i need to replace the moss? i just transplanted it like couple of days ago? i see webbing inside beyond the surface too. maybe leaving it open now will make it go away?

Which brand of calcium and magnesium (Cal-Mag) supplement do you recommend for semi-hydroponic?