Help.... next fish to get

[Diddy]

Hello, I have a 600l sumped tank and currently I have
Regal tang
Fox face
Yellow tang
Two clown fish
Flame angel
And a dansel
Bird wrasse (female)

Can I get other fish for the tank and if so what would be good? All parameters are good and most fish are around 6 years old

Dave

 

[FishL0ver]

If your tank has a lot of hiding spaces, I think some small gobie would be really neat!

 

[Diddy]

Cheers yeah I was thinking about that but also wanted to know if it’s worth getting another bigger swimming