Yellow watchman goby staying near the surface

[Opticat]

Bought a yellow watchman goby a day ago, today it swam around the tank unlike the behaviour that i have read that it likes to stay in a cave/burrow, currently night time here, in goby is currently the surface of the water near the water intake into the "sump" of the tank (aio) , should i be worried or should I just wait it out until the goby settles into its new home. Thanks everyone

 

[Timfish]

If it was in my tank I'd be worried I have a parasite. It also may be getting picked on by other fish and not able to find a cave/overhang to establish it's territory.

 

[Quietman]

I've had gobies (gobys? what's the plural of goby)...hang out at the top for the first day and overnight before (new fish, new tank). Especially if it's a goby that likes to pair and hasn't found shrimp yet.

I would be concerned and keep watching it for any other common disease, injury or hassassment symptoms. But wouldn't panic just yet.