My question is: Is the pale Chaeto likely to generate more chlorophyll and green up over time, or should I cull the paler growth (which is most of the total) and start over?
Water quality is otherwise good. . . Nitrates 0, Nitrites 0, always some ammonia in my system though. Ph varies from 8.1 @ night to 8.3 during later ‘daylight’ on the reef. Same question goes for some red calcareous algae I’ve managed to bleach. . . but this was because I hadn’t read the WWM FAQs. . . which outline how little light the reds seem to want relative to green (and even brown) algae.