blue backed blue eyes

Got some Pseudomugil cyanodorsalis. Not cheap,but a species I've wanted to try for some time. I was afraid that they might not live up to the photos, but now that they have settled in, they really do. Like many iridescent fish, the photo will be the best of a hundred showing the blue and yellow at their grandest, whereas, when they swim quickly around the tank, as they always do, you get flashes of those colors from the males, but when you have a group, as I do, there is always color showing. Very small, very pretty fish.

The literature says that they come from a variety of waters near the coast, usually with some salt. I have been keeping mine in fairly salty water and they are loving it, but that precludes having significant plants in that tank. If the literature is right, they can live in pure fresh water. That might not be best for spawning, however.