So i upgraded my tank over the weekend everything is running smoothly. But have noticed white spots on my tang. He has them in the mornings but not in the afternoon none of the other fish have it. So my question is are my cleaner shrimp cleaning the ich off him during the day? Or is it just sand for him sleeping through out the night. I would post photos but by wife's photo doesnt show anything on him in her picture. But can update later today. And in the morning again