Yes, Figi rock is very good. I started my pod with 30 lbs cured Figi, and 30 lbs live sand, and virtually had no cycle at all.
I have 1 Yellow Clown Goby, 1 Saddleback Blenny, and 1 Fairy Wrasse. Lovely combo. Very colorful! And full of personality! Any Blennie is a ham. All will stay relatively small, with very little bio-load. I have 3 colonies of zoos: 1 brown, 1 blue, 1 unknown. Also have a large Green Star Polyps colony, and a colony of Clove (aka Waving Hand) polyps.
Its a fun tank. Much more entertainment and less maintenance and less stress!
Again, HTH It works for me! All we added was an additional Maxi-Jet 1200 for added flow.