Just went to Pensacola and my nephew caught a bunch of hermit crabs and brought them home. He wants me to put them in my tank. I don't mind putting them in there as long as they will not hurt anything. right now I have them in my QT tank. They look all white and they have shells that spiral into a point. does anyone know if these would do ok in my reef? I have a 100 Gal with about 175-200 lbs live rock with a DSB. Thanks for any advice.