I have 2 sandsifters in my 55 and a clam. The stars crawl around it all the time. they are about the same size. Not sure if it matters but the stars were in the tank first,
I have a TruVU 10 gallon tank with Aqueon 20 power filter, stand, heater and sand . Asking $140
Tank is in excellant condition ( sorry no light or rock)