I have a flame in my nano, its majority sps with one duncan for the clowns. My flame nips
At my sps polyps but nothing worth getting too cranky over. It's not gonna kill my sps, hasn't in the last 6 months. The odd bit of nipping doesn't seem to bother me, and honestly nothing that wouldn't happen in the wild. I don't so lps and softies other than the one Duncan so can't speak for how detrimental it is to these corals