They look fine to me. I had some similar algae on my zoas, just remove it by hand (tweezers help) and they should start opening up. You could also do an iodine dip with some lugols solution.
They look fine to me. I had some similar algae on my zoas, just remove it by hand (tweezers help) and they should start opening up. You could also do an iodine dip with some lugols solution.