Aggressive long nose hawk fish

[shale]

whenever my fire goby goes out of it’s hole, the long nose hawk attacks it, so the goby is not coming out for days. Have any ideas to stop to stop it?

 

[Dread Pirate Dave]

There are a number of things to try such as using a mirror to divert their attention. Here's a thread that has more suggestions.
https://www.reef2reef.com/threads/b...o-you-deal-with-bullies-in-your-tank.1065064/

Your two fish have very different temperaments. This doesn't always work out so well.