Don't worry, they're easy to keep and they're somewhat peaceful. It probably helps all fish if your tank is heavily planted. I got two at Petsmart on Monday and they laid eggs within 12 hours, and they haven't eaten them either. Still guarding them as a team.
The only issues I've seen them have is with my female dwarf puffer... I guess she got territorial or whatever because of the new fish. It was kinda like a standoff, no picking or anything. The puffer imitated it and was the one to swim away out of fear. The GBR never did anything to it.
They're even safe with fry. I have a lot of guppy fry in the same tank. One of them swam over to the eggs while the GBRs weren't watching and was picking at an egg. The male GBR (biggest fish in the tank, able to eat the baby) just swam over and scared the baby guppy away.
I've kept GBRs before with gourami and there were no issues. The gourami were about the same size or a bit smaller than the GBR.
I think they're a great community fish. They will fend off fish that initiate a "fight" but they don't cause problems. Very easy to keep, as with most fish. Not picky eaters or whatever -- I think that's the only thing that can make a fish difficult to keep lol.
. They are great fish! my favor by far!
