I would think a puffer would eat an anenome. How would it be any different to soft corals and puffers are not reef safe? I have read some have success with them in a reef but most do not try.
I would be wary.
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,