RE: New Webpage: Incubating/Hatching Aphy. australe eggs

["Genade Tyrone <tgenade at sun_ac.za>" <tgenade at sun_ac.za>]

> By the way, could the fish be infertile?? I never had a  successful hatch
> from the new Fp. Gardneri male before. ( the earlier male  died the next day
> after I brought it back from my friend's place. But managed  to collect and
> hatched 3 eggs.)

Yes, probably due to temperature. With increasing heat the productivity of the testes drop. What is your tank temperature. I used to get good hatches up to about 26oC.

The method of egg handling is also important. You can't just drop the eggs into a tray of water. They need adequate O2. Also, such 'sterile' environments are prone to bacterial blooms that can kill the eggs. The natural environments of the mops and java moss have a host of microorganisms that control bacteria and fungus. Plants such as J.moss also release O2 into the surrounding water.

These aren't exactly new ideas. I know Wright has been harping on about them since at least 1998.

Another possibility is that the male was still young and trying out his new role. It takes a while before the young males are able to do the work properly.

Tyrone Genade 

http://tgenade.freeshell.org
Ph: +27-021-558-1753 (h); +27-021-808-5876 (w); +27-084-335-4977 (c) 
P450 Lab, Department of Biochemistry, University of Stellenbosch, Matieland 7602, South Africa 

"Seek your happiness in the Lord" Psalm 37:4 



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