i dont think its mold, theyre not that wet usually they got left in the rain when i was at work
and also how would i fix the iron problem? i know this isnt the right thread really for nute defs.
i need to get a better pH meter and possibly check pH, right now it says 7.5 but i think its broken, need to put them in perm pots, but for now ill leave em and see what will happen. im thinkin its really strain because all the other ones seem fine
oh and btw they are outdoor, i take them inside and put them under a few floros when it gets nasty outside. thats when i took the pics. to clear any confusion