Hey San,
Thanks for the input. I'm afraid these are seedlings - I have yet to have a mother for clones. So I'd love to be able to save them although it seems like a more unlikely prospect evey time I open the cabinet doors
The enivironment seems to be somewhat stable now but they may be too far along. The TDS is at 285PPM today but I think as a final attempt, I may take your advice and replace completely with water. I'm going to test my tap water and see if that might be an option. It's pretty hard so it may be to high on the PPM - if so I'll go buy more RO and give it a shot.
Things aren't looking good
and after all that money and time spent on the cab and bubbler.
Ah well, I suppose I'll figure it out.
Cheers...