Twinspot Signal Goby: The coloration of the Signigobius biocellatus dorsal fin is thought to mimic a crab as it hops along the bottom with its two eye spot fins erect. This fish needs a live sand bed and well populated refugium to do well in captivity. Usually it feeds off the bottom sifting through the sand for food. Often found in the wild in pairs they are thought to do poorly in captivity if kept singly. This is an advanced care peaceful species that should not be kept with aggressive species or other sand sifters. The Twinspot Signal Goby maxes out at 3 inches and requires at least a 10 gallon aquarium with a mature sand bed. This is a peaceful advanced care level reef safe-fish.
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