How about you guys? Any new fish keeping endeavors or projects?
It seems like I have to move fishes around in my fishroom at least once a year, but it usually involves just a few tanks at a time. However, at the moment just about all my colonies need rearrangement, except for my four
Tropheus species tanks. One of those tanks has been a real success story this year, however, which has made me very happy. I obtained a small colony of
Tropheus annectens from another Fishbox member several years ago, and until recently kept them with my
Tropheus sp. 'black' Ikola. These species are sympatric in the lake, so I figured they'd be fine together, which was largely true, but I never had any
T. annectens spawnings. This was of some concern as
T. annectens are rare in the hobby, and you seldom see them for sale. I was also worried that my colony might be getting beyond optimal breeding age, so I was concerned about being able to propagate this colony going forward.
Not to worry. I moved my
T. annectens colony, 14-15 adults, into a 100g species tank about a year ago, and once they settled in they began to spawn regularly. I was so excited about this early on that I moved one of the brooding females to an isolation tank (40L), where she hid for 4+ weeks before releasing 6 fry.
T. annectens are a gregarious species that congregate in large groups in the lake, and they clearly don't fare well in isolation.
Since then, I have let all the brooding females simply release their fry into the main tank. The fry have ample hiding places among the rocks, but those seem largely superfluous, as well-fed adults show no interest in the fry, even when newly-released. So by now I would estimate that I have at least 30 progeny, with some fishes nearly 2"TL, and others just-released little ones, as shown below.
This little guy, at ~1.5", is probably a few months old. Already starting to get some blue pigment in the eyes.
This batch was just released in the last day or two. As you can see, they are well-developed upon release, this being some 30 days or so post-fertilization. Most
Tropheus fry actually feed whilst in their mother's buccal pouch, so they are robust upon release.
The proud parents.
T. annectens is the only
Tropheus species that displays sexual dimorphism, as shown here. This young male is transitioning to full adult coloration, while the females retain the pretty banded pattern seen in juveniles.-