Rabbitfish With Aggessive Fish?

[RobHimself]

I've got a 150 gallon FOWLR tank.
The current residents are a Niger Trigger, an Arc Eye Hawkfish, a Gulf Toadfish (as far as I know, he's a whitish gray), a Snowflake Eel, a Volitans Lionfish, and a Dragon Wrasse. Oh, and two black spined urchins.
All of them get along fine and are very healthy.
All water perimeters are normal and I've never really had a problem with water quality.

I would like to add a Siganus unimaculatus (One-Spot Foxface).
Would there be any issues?
I know that Rabbits are very peacful, except with other Rabbitfish, and they are not bothered by predators because of their venomous spines. Is this true?

Thanks.

[leebca]

I think in general the Rabbitfish will be in trouble. With that particular grouping, the Rabbitfish should have been the first one in the display. They are usually very timid and peaceful and in general unable to handle trying to adjust into a mixed group of established community fishes.

[RobHimself]

I figured that might present a problem.
Would re-arranging the rock work have any role in this? I know that stops territorial behavior from happening with newly introduced fish. The fish I've got in there already aren't much territorial though. (Well, other than the hawkfish. But even he isn't so bad.)

Is there anyone I've got that you know would immediately or inevitably attack/harrass the rabbit?

[leebca]

They all have a moderate chance to take offense to a new addition, but the Wrasse and Trigger might be a bit higher on the list.

The rearrangement of the landscape should give the Rabbitfish the best chance and I would speculate it will work in this case. Quarantine the Rabbitfish for 6 weeks, make sure it is clean, adjusted, acclimated, and eating prepared foods. Then if all is well, shift the landscape but still provide proper holes for the eel and let the rest fend for themselves. On the evening of that rearrangement day, put the Rabbitfish in at lights out.