Yellow Clown Goby note eating

[I<3Blowfish]

Got the fattest goby I could because I know new fish don't always eat a lot... Got him 3 days ago. He's gone from being active to hiding out near my hi fin goby. I've seen what looks like chasing a piece of food, but he never actually eats it. Tried frozen mysis and brine. Tried spot feeding and feeding at night (which helped with a picky bengai I have) and nothing seems to help... No signs of trauma or disease. Any ideas or suggestions would be greatly appreciated. I really don't want to lose this little guy.

 

[eatbreakfast]

Try a smaller food maybe, like calanus copepods or reef plankton.