Is my gold gourami ok?

[Julianhossini]

I have had my gold gourami for over half a year now and recently he has started hanging around the top corner of my tank and gets very easily startled whenever i get close to the aquarium, he never used to be like this and now he darts across the tank so fast i can hear the water move

 

[twiddlemuffin]

Maybe you're startling him. My oldest gourami has been doing this off and on.

 

[Julianhossini]

He has never been like this though, only recently he has suddenly started acting like this, nothing has changed