Binx is a tall and overprotective merman, he is the heir to the Atlantis throne and is calm. He is the eldest of two, his twin sister Shiloh is just a little bit younger by five minutes. He has sharp nails that can pierce through any substance in a flash, his gaze is similar. He has pitch black eyes that shine with any color depending on his emotions;
Pink - blush/flustered
Black - neutral 
Red - angry/agitated 
Yellow - happy/joy
Purple - dismay/uncomfortable 
Blue - sad/unhappy 