I bought a dozen Brachygobius aggregatus from Franksaquarium last Spring, and really love having them in my tank, and they seem right at home with all my dense tiny leaf plants and lava rocks, and are very day active. I consistently flavor
the 30gals with about a tablespoon of marine salt, so clearly these will do well in fresh water. I know gobys do get a bum rap, so I can only vouch for mine, who are aggressive enough to go after live brine shrimp and live black worms, while leaving my small male cherry shrimp alone. where ever you buy these, be sure to slow acclimate them since they were probably kept in saltier water.
As an experiment, I threw one goby in my shrimp breeding tank that has dozens of 3mm fry, and even after several days in there, I'm certain the goby didn't pry on a single fry! I have never noticed them being particularly territorial beyond an occasional nudge that tells another fish to move along
, and more often then not, they simply get out of the way. I think mine have solid stripes
and I would get at least three, as these fish don't school, but they do like to congregate with their own kind, like my pygmy cories.
Scarlet Badis sound like a great idea, and I've added them to my list of fish to try. I had Sparkling/Pygmy Gourami Trichopsis pumila
in this tank at one point, but I moved them to my 29gal high with my tiger barbs
, because they were growing over 4cm and did pray on my adult shrimp, but they get along great with each other and each of my communities of fish, probably due having a lot of vertical plant growth in each tank.
I agree that putting Cardinal tetras in this tank was a stretch, due to their size and high contrasting coloration, so I may remove them now that they are fully grown, but I saw them for $1 each as fry in Chinatown, and couldn't resist. In addition, with the Endlers, Danio and Hengeli doing most of the shoaling; the tetras have become relatively docile in this tank, and stay huddled close together most of the time even after Months in my tank.
I'm amazed male
Endler's are not more popular to the LPS trade, as the two dozen of them in my tank are by far the most colorful and entertaining fish I have kept to date, and are the hardiest <1" fish I know.