I don't think so...
But if you decide to add a goby anyways make sure it's a small species like a rainfords, neon, yashia, clown...ect. (all these stay 2" or under)
If your tanks cycled already then just add a little goby 1st...Then wait a month and add another fish...
I personally wouldn't add the damsel but it's your tank(hard to get out i've heard)....so do what you want...jmo