(Cryptocentrus_leptocephalus) or the Pink Spotted Shrimp Goby should not be confused with (Amblyeleotris guttata) the Orange Spotted Goby..
Orange Spotted Gobies have a terrible reputation of decimating tanks of benthic creatures such as
pods, mysis, and worms...This is their main diet...
Pink Spotted Shrimp Gobies do sift sand, however are more carnivorous. Mine stays mostley in one area of the tank and eats meaty prepared foods...
I don't consider myself lucky, I have seen many Pink Spotted Shrimp Gobies alive in tanks and no shortage of microfauna experienced...
Note: This is my experience and observance and not that of all fish keepers....