I've got a Maroon. When I first put him in my tank he dug a burrow. Soon after I put in a hammer and he actually filled in the burrow. I think he's stoked to have a coral to swim in. He's been getting closer and closer to it. I feed him dried Mysis Shrimp every day and frozen Spirulina once a week with his regular feeding. I want the tank to get nutrients so the corals can pick it up as well, plus the cuc has got to eat something. I think just keeping your water right and consistent is the key. Watch them for abnormal behaviors and check their color, specifically for spots. I check out my clown every day and he seems content with his reef. 10g Nano, he is The King of his reef but the clown of mine...
I don't always build a reef, but when I do I take my time. Stay patient my friends.
Building a reef is like going back in time and being 5 years old at Christmas!