GSP brackish water tank mates?

What's your opinion? What should I add? I was thinking night goby's. Anyone have suggestions?

Molly, Bumblebee goby, Archer fish. I would start with an inexpensive fish to see if your puffer will tolerate tankmates.

It had 2 mollies with it when I got it but they didn't last long. I don't know how long they were in there for but they didn't have any bite marks on them.

There are some interesting fish out there but they all seem to get pretty big. The knight goby seems to be a good choice.

This may be on hold now. Looks like I may need to sell some stuff instead of gain. :/ there seems to be a move coming in my future.