Phal. Tsay's Evergreen

Actualy one from the two Tsay's Evergreen phals I had, that is still alive and growing. They both suffered severe root rot and then the leaves were burned under the T5 HO fixture at the beginning of my experimenting with tank lighting. The second plant looked too bad and was let go. Now I think the remaining one got scared and tries to show me that he is worth keeping. Look at all those roots:



And there is a new spike:



The leaves on the left show the burned patches, that's the side that was exposed to strong light. I hope spike doesn't stop growing...

Phalaenopsis Tsay's Evergreen

Phal Tsay's Evergreen has this concerning yellowing on the bottom leaf at the base. Plant overall looks ok, new leaf is growing, but when I re-potted to check out the roots - there was a lot of rot at the bottom part of the base, so I cut a chunk of it together with rotted roots. I am afraid that it will continue up.




Problem area closer:



Anyone has any suggestions? Is it saveable?