• Mike

Diana3118

It's hard to see, but could this be a nudibranch? What kind of lifestyle does it lead, diurnal or nocturnal, and what does it eat?

Loretta5483

Thank you for the message. It leads a daytime lifestyle and is currently finishing off the algae on the back wall. I can't get closer to take a photo. What concerns me the most is not the exact identification of what this creature is, but whether it will damage anything in the aquarium. It definitely looks more like a mollusk.