I was in Bonaire (December 5, 2012) trying to photograph a goby (I think it is a Yellownose Goby based on the yellow bar on his pale snout) in a tube sponge. I also captured another fish deeper in the sponge. Does anybody know what it it?
The fish looks like he is sporting a sea bass/grouper mouth. I read in DeLoach’s Reef Fish Behavior book that juvenile Graysby often hide in tube sponges and that is what this one is doing. Also that they feed almost exclusively on shrimp, and if you look around the inside of the sponge there appear to be shrimp shells scattered about. Only problem is this little guy doesn’t seem to fit the description of a juvenile Graysby (there is no white band running from nape, between eyes to lower lip).
Or could it be a Hairy Blenny (it looks a bit like the photo of a Hairy Blenny in Humann/Deloach's Reef Fish ID book, especially the flowing pectoral fins.
Thank you, Toni