Depends on the gobies.
I have several together and have had no issues. I also went with ones that did not look similar to each other so I believe that helps.
Which gobies are you looking at? And what are the other tank mates?
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.