About a year ago, we added a Red Headed Goby, that I, mistakenly posted as an Elacatinus puncticulatus. In the last year, we hardly ever see it, and have actually gone over a month without ever seeing it. Lately, I've been catching glimpses of it, every now and then. I'll even it sitting on a rock, but before I get the camera, it darts into hiding. Well, today, it's been out in the open!! After taking some pictures of it, I need to correct my previously mistaken ID. It's actually an Eviota nigriventris. Sorry these aren't the best of pictures. The curved glass of the nano, makes macro photography a bit difficult. To give you an idea of size, it's about 3/4" - 1" long.