goby--sand sifters or shifter?

[clarkiiboi]

Are the sifters the ones that deplete the sand bed and the shifters don't? I think I am right, but would like some backup. With that said, I would like to get a goby that does NOT deplete the sand bed of critters just moves the sand bed around. Any suggestions? Thanks all

 

[aarone]

yup shifters move, and sifters eat. try an engineer goby. i am pretty sure that they just move the junk around.
aaron

 

[bdhough]

i don't think that kind of goby exists. Better off with a blenny of some kind. Similar temprament. Maybe one of the watchmans..... Not entirely sure. I would stay away from an engineer goby unless you want your entire tank rearranged by him. They WILL move every bit of your sand till it suits him..... That includes unstable rocks btw.