Might be time to switch to an all-fabric bleach? :thumbsup:

I'm not a hydro guy, but is this a progression, or did they just appear that way overnight? Is there any indication on new growth? I know they are tangled, but have you carefully checked it's rootball for damage, black or brown spots or slime? Yellowing leaves I could understand, but white isn't a normal color found on cannabis. Roots, yes. Foliage, no.

Were they bagseed, I'd mention that DJ Shorts is offering a variegated Blueberry strain. Perhaps of the same basic lineage? Perhaps a result of decades of uncoltrolled cross breeding...? Perhaps a new strain of killer quality and flavor...? Perhaps spilled nutes or splashed phosphoric acid...?