So i found this in my aquarium this morning (during lights out period) it seems to move relatively fast. I got it off the sand and put it on the glass so i could get a decent picture. I couldn't get it's back side, but here is the bottom. Is this good or bad? I thought it was a brittle starfish, but it has 6 legs and i thought brittles only have 5?
anyone know what this is?
