Rainbowfish Mailing List Archive: Re: [RML] breeding viable axelrod eggs

The fish didn't seem all that fertile to me either when I had them. What hardness are you keeping them in? Since a lot of IJ/PNG is hard water perhaps increasing the hardness to ~ 200 ppm might help things. If you're already there, oh well. Are we talking about at least 2 inch fish or are these still real small? Young males don't always have the process down and it takes a little maturity on their part to get it right. The other factor that has helped me increase viability on several types of fish is to feed more live foods. It's amazing what good feedings of live daphnia and mosquito larvae will do for egg production and viability. I don't remember whether the stream was a faster moving or a slower moving stream but you might try moving the temps down to 75 degrees and increasing water movement/O2 values and see if that makes a difference. Sometimes it's the little things that will get the male more in tuned so that he'll do his job. Good luck with them as this really is a
nice species. Too bad more people haven't gone into this area to see just how much broader the location area really is. So many of these bows have just been collected from one area. The G. doryiti and probably now the G. pseudoincisus areas are being expanded each time they look in nearby lakes.

Gary Lange

I can confirm Chilatherina axelrodi is in Europe, swimming in my fishroom. It was a big effort to import them from Australia, but it was worth it. It´s a beauty.

But breeding is more than difficult. From 50 eggs one is hatching. Compared with G. maculosus, the mac is easy-to-breed. That is the reason why swapping eggs could be problematic. I am building up a breeding stock at the moment. If the quantity is enough, it would be possible to send young fish to the US. But this will take some time.

r_m_l at yahoogroups.com schrieb am 12.04.05 16:28:54:
There is a new strain of C. axelrodi in Europe, but it seems it will take a while before there are enough fish to distribute. Gl. maculosus are more or less regularly available within the IRG, after they had nearly disappeared. Why not trying to swap eggs across the Atlantic? Harro, do you think this could work? Christophe
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The fish didn't seem all that fertile to me either when I had them. What hardness are you keeping them in? Since a lot of IJ/PNG is hard water perhaps increasing the hardness to ~ 200 ppm might help things. If you're already there, oh well. Are we talking about at least 2 inch fish or are these still real small? Young males don't always have the process down and it takes a little maturity on their part to get it right. The other factor that has helped me increase viability on several types of fish is to feed more live foods. It's amazing what good feedings of live daphnia and mosquito larvae will do for egg production and viability. I don't remember whether the stream was a faster moving or a slower moving stream but you might try moving the temps down to 75 degrees and increasing water movement/O2 values and see if that makes a difference. Sometimes it's the little things that will get the male more in tuned so that he'll do his job. Good luck with them as this really is a nice species. Too bad more people haven't gone into this area to see just how much broader the location area really is. So many of these bows have just been collected from one area. The G. doryiti and probably now the G. pseudoincisus areas are being expanded each time they look in nearby lakes.