Thanks. How long have you had it? What are your nitrates and phosphates?
Longer then a year. Nitrates are less then 1, and phosphates usually hang around .02-.08. Tank is 250g with a big skimmer and a refugium. Started dosing potassium nitrate, it's helped a lot, but some acros are just pale. DM is one of the corals that just won't color up.
