I think you're ok. Just keep on top of parameters, as previously stated.
In my 180, I have:
Paired blue throat triggers
2 yellow tangs
4 flame wrasses
2 potters wrasses
2 leopard wrasses
1 blue star
1 yellow Coris
1 filamentous wrasse
1 longnose hawkfish
1 pink margin wrasse
RIP: 2 rhomboids, 1 lineatus, 1 naso, 1 moorish idol, 1 labouti, 2 velvet wrasses