Sparks, that's not a very high RH for mold to occur friend............50-55%........aint to bad sparks,.........very surprised you got mold at that RH% man ??...................are they all ?? (4no ? 6no ?) on auto pots with feet in water all day sparks ?? to a depth of 15mm ??............they may be very wet "Internally" due to auto pots being saturated in water all day sparks ??.....................AB............plus theres water surface availabl;e all day to vapo water into your room pushing up moisture levels ??.......AB.........
AB looking for a new auto,.............15 days to flower with flower nutes in soil. I allways put epsom salts in my soil to help prevent def's of manganese and magnesium etc......never tried N 2, P6, K8, ??.....in soil pre use etc..........AB........
StarRyder do look ok though sparks...........it's in top 5 choices to run next anyhow !!...........