I have been reading about carbon dosing and Ultra Low Nutrient systems (ULN). The proponents of ULNs are probably using 'nutrients' in a different sense than is used here, but their thinking is that these conditions tend to enhance colors, particularly in SPS corals.
ATS tanks would seem to be at the other end of the spectrum, nutrient wise (plenty of food!). For people who have been running ATSs for some time: what is your experience in changes in coral color and growth rate, before and after? Any differences between SPSs, zoos, mushrooms, monties?
Are Xinia still the only corals that do not seem to like ATSs?