saddle puffer

[commodore]

Considering adding one to a 58 gal tank-mainly fish with LR, but a few soft corals-mushroooms, green stars,xenia, frogspawn. Have clowns,royal gramma, blue chromis, coral beauty.

1. How big do the saddle puffers get.?
2. are they hardy and easy to feed ?
3. Compatible with my fish?
4. CoMpatible with soft corals?

Thanks