I won't argue that lps seem to thrive more in a not so ULNS but so will other algaes too, no? I just don't see how it is possible to keep a nice reef tank long term without striving for an ULNS. I have found that LPS adapt to the ULNS and this is why it is nice to have LPS pieces with good lineage in ULNS systems so that you know it will do ok without needing a dirtier tank. I consider myself to have an ULNS and all my lps seem to do ok in there. I do find however that I need to direct feed them. But I also feed my sps....just not directly.