bro jacobus,
i only got one sand shifter, which is the signal goby, the other 4 are rainford, high fin goby and a goby with orange dots (dont know the name). my high fin i got it 4 days ago and feeding well but MIA liao.. didnt see it for 2 days might be hiding somewhere.
the only agressive in my tank is a bicolour gamma which doesnt really disturn that signal goby ...
my tank size is 3 by 1.5 by 1.5. sump tank is the same dimension. my main tank has around 1.5 inches of grade zero sand.
bro Reefaholic,
mine come out to the open to feed munch on sand, hides near a rock at night, my tank is pretty small so i dont think it has alot to munch on will keep flooding my tank with food until it fattens up