Citron goby bully

[Ironlink1000]

Hi! I have a 40g community tank with lps and soft coral. I have about 45 lbs of live rock. I have: 1 pajama cardinal, 2 clownfish, 1 diamond goby, 1 purple fire fish, and 1 citron goby (the bully). For inverts I have about 10 hermits and 15 snails, a skunk cleaner, a fire shrimp, 2 peppermint shrimps, and 1 pincushion urchin.

when I added the citron goby there were already 2 clowns and a diamond goby in the tank. He has been growing very fast (as have my other fish) and he is now as big as my female clown (about 3 inches). I have started to notice my citron goby gradually become aggressive towards my clowns and he has even tried to bite my diamond goby at some point. The firefish hides all day and the clownfish have never been territorial towards anything but the wavemaker (lol). I’m not sure what to do because I really like the citron goby but I don’t know why he’s gotten so aggressive. Does anyone else have a similar experience?

 

[blaxsun]

You may need to re-home the bully. That or move it to another tank or upgrade to a larger tank.