Twin spot/ Signal goby.... how hard to care for?

[XXFirefighter]

Why are they hard to care for? The feeding? He'll have enough food !ANything I should know about them? I am getting one on Tuesday. I need something to sift my sand a little... Only getting one. I know one can't kill a LSB !

[scuba_steve]

my book marine fish by scott w. michael writes "usually sold in pairs (often found in pairs in the wild) and are thought to do poorly if kept singly.

[kidkameleon3]

like mentioned in mine he does fine with just rock to search around on and sand to sift.Mine seems healthy as a horse 1 month in.I still must say one of the better looking fish , I like him better htan my watchman.They have hte same blue specles