haha... 'coax', good word! This piece likes a bit more light + moderate flow. (i think lah), coz it used to be directly under MH.
Frankly, having a zoas-only tank can be risky. They are unpredictable. one fine day, they will just decide to close on you, and we can't even do anything about it.
I've got some zoas that just disintegrated while in betta boxes.
i'll try to remove it over next weekend. can have excuse to visit ur tank as well.
on the other hand, my tank is way too messy, am trying to find ways to remove all the frags baskets and betta boxes.
I'm sure i will be doing a clearance sale soon.