I have two possible problems. For starters I seem to have a lot of air bubbles that sit in various places of my tank. Is this a problem?? Secondly, I purchased a candy anemone around two weeks ago and it seems to have turned from a white to a light brown. The creature seems to be ok healthly looking during the hours the light is on, although, at night it shrinks really small and the tenticals deflate. Is this normal? I heard something of bleaching the animals, what is that about? I currently have another anemone in the tank that is doing just fine. My water para. seem to be fine as well.