New Nothobranchius coming .

[Back in the fold]

I did not know there were other varieties or are they locations ? I am particularly enamored of this fish . The yellow coloration is nice and also the cross hatching lines between the scales across the body . The thing that I like best is the large dorsal fin . It will be a real treat to watch them spawn as the male wraps his dorsal fin over the female while she lays her egg . I have two brine shrimp hatchers set up now . My guentherii fry are eating well and the new fish prefer live to frozen . I can’t get a good picture of the rachovii because all they do is race back and forth . They never sit still unless I’m out of the room . I know that because I spy on them from a distance . But still I try .

 

[GaryE]

There are different locations, with the different colours, but there are also breeder set yellow and red lines. Some yellow populations have been in the hobby for a very long time.

I think that's a very lovely fish. It doesn't hurt the eyes to look at that.

 

[Back in the fold]

My Nothobranchius guentherii Zanzibar are growing out . They seem to eat more every day and I have had to add a second brine shrimp hatchery to keep up with demand . They will be ready to start taking Grindal worms any day now too .

 

[Innesfan]

Love seeing those pink bellies!

 

[GaryE]

On record, I see 13 different locations where the fish has been collected over many years, with both red and yellow listed. It's an old timer in the hobby. It's also an endangered species, as is the case for a lot of annuals. Every time a swamp is drained for agriculture, bridge building, whatever - a population can be lost. In rapidly expanding population areas, the future isn't bright.

I was looking at pictures of them - they have a serious shortage of ugly.

 

[Innesfan]

I was looking at pictures of them - they have a serious shortage of ugly.

The entire genus!

 

[Back in the fold]

I thought that Nothobranchius would be spared the environmental threats . I was mistaken in thinking that most of their habitats are in the far flung and sparsely populated grasslands but that is not so .

 

[Back in the fold]

I moved my guentherii fry up to a ten gallon to grow out better . The two gallon “ Kritter Keeper “ I had them in was getting too small . They were acting skittish and I attributed that to water quality . Even with a daily 50 % water change it was probably too dirty with the heavy feeding and the wastes of about fifty fish .

 

[MattW]

Holy fish!

 

[Back in the fold]

And finally a picture of a rachovii male .

 

[GaryE]

An excellent portrait of Dad!

I have hit a roadblock with my bought eggs, probably caused by conditions in the postal system. All of my Nothobranchius palmqvisti fry are male. I'll enjoy their looks, but the buck stops here.

 

[Back in the fold]

All of my Nothobranchius palmqvisti fry are male.

That’s a disappointment . I hope all these don’t do that .

 

[Innesfan]

That’s a disappointment . I hope all these don’t do that .

The issue of skewed gender ratios for killies can be vexing. My Aphyosemion sp. Lobaye skew heavily toward males, though I get some females, while my Fundulopanchax filamentosus, kept under the same conditions, pretty much deliver 50-50 gender-wise.

 

[Back in the fold]

The issue of skewed gender ratios for killies can be vexing. My Aphyosemion sp. Lobaye skew heavily toward males, though I get some females, while my Fundulopanchax filamentosus, kept under the same conditions, pretty much deliver 50-50 gender-wise.

You read all the Killifish forums and journals and this might just be the most talked about subject of them all . Everyone has an idea but it never turns out like they thought .

 

[GaryE]

I always have my one example - Aphyosemion zygaima, which gave me 37:1 males for the first 5 years, then gradually as I reduced minerals in their water became easier. I now get fairly even ratios, 33 years after I started. No other Aphyosemion, even close relatives in the ogoense group, reacts this way. But if I want more males, I pick the eggs, incubate and raise them in harder water. It has worked enough that I have something.
For one species. And only one species. We want general rules, but evolution doesn't work that way.