Originally Posted by melosu58
If he is eating frozen make sure you feed vitamin fortified brine or mysis. This will help him till he does start eating good. I personally think he is getting enough from the sifting.
+1. We tend to overfeed our fish ALOT. Most sand sifting gobies rely on "sand-sifting" for their food. I also have a banded sleeper goby that will eat pellets like crazy, but he also sifts sand the majority of the day. If you need reassurance, just spend time studying his underside (belly) if it plump and noticeable, hes healthy and happy, if its recessed or shrunken in at all, he may need some help