Revived the office-Phal but won't survive out of water

[Roberta]

Originally Posted by Subrosa

Keep it in the bowl.

Indeed, don't argue with success... Those roots have developed in the water environment, they are happy that way. Roots tend to develop to favor a particular environment and to resent being changed to a different medium. That's why the advice to repot when new roots are starting is so important. In this case, you have an environment where the plant is doing fine, so that would be a good argument to keep on doing what works.