Original video from Blennywatcher.com: The Signal Goby, a.k.a., Crabeye Goby, a.k.a., Twinspot Goby is not only one of the most fascinating fish to watch, but it has some pretty curious reproductive behavior. Signigobius biocellatus feeds by sand-sifting so we find them just off a reef or near a shoreline in silty, nutrient-rich sand.
