Recovering bubble and zoanthoid questions

[spit.fire]

a few weeks ago i acquired a neer dead bubble coral and was hoping to bring it back to life, since i got it it has come back a bit but not nearly as much as i had hoped it would after 3 weeks.
is there anything i can do to speed up its recovery?
for lighting ive got a 150w coralife pendant with a 10k bulb


also for zoas is it best to have an attinic light?