I want freshwater gobies that are good for a community aquarium and live well in freshwater. I have a 45 gallon with zebra, and giant danios there is also some black skirts which I have not had aggression problems with. I also have a sunset thick lip, and opaline gourami which I also have not had aggression problems with. There is also red eye tetras and silver hatchet fish, and also a attempted pare of apistogramma trifasciata, and what I'm most worried about a giant checkerboard cichlid. And for the bottom dwellers a bristle, and common pleco, and last a weirdly placid red tail shark. Also I have a fluval f6f so I don't have to worry about over stocking even though the fish seem to have plenty of space, there is also lots of caves and driftwood on the bottom. And the tank has a bit of a fast flow and I know that's good for gobies.