When to say enough to the aggression?

[DexterKarin]

I have a bonded pair of ocellaris clowns. They are actively hosting a bunch of frogspawn and the side of a rock. I moved into a bigger tank, a 30 long AIO and introduced a springerii damsel and a bangai cardinal fish and a tailspot blenny all at different times and the clowns are fine with them. Along with the cardinal fish I introduced a citroen clown goby and it is not going well. The clowns would not leave the goby alone and tore some fins. I had a tank divider in and the clowns especially the male wanted at the goby. This went on for 4-5 days. The goby did its part for exposure therapy hanging out/perching at the divider quietly but the clowns do not like him. Then this morning the goby had somehow gotten to the clowns side. It is not insane but the clowns pester and bump him a lot and seek him out to do so. They do leave the goby to go do other things but then go after him again. Stupid me, the clown goby looks like a clown fish in shape. Do I throw in the towel and find a new home for this guy? My gut says this will not work and to not do all kinds of tricks to get them to get along. I think the tank is too small for this. But my gut is a beginner reefer gut so not really sure. Thoughts?

 

[Mr. Mojo Rising]

I'm surprised any fish would bother with a clown goby, but 6 fish in a 30 gallon is a lot IMO, I think your goby is having trouble staying out of others territory.