A video showing the development of P. nagyi larvae from the day of hatching out of the eggs until the day they all swam out of the nesting area – approximately 10-12 days. Conclusion: lowering the conductivity from ~70µS to below 50µS made a significant difference in the survival and development of the larvae. The female has laid ~15-20 eggs (clearly not 30 or more) each time – is this dependent upon age or diet and if any of these variables change will the number off eggs change? It remains to be seen. It looks as if 10 or more larvae were successfully raised to the free swimming stage and moved out into the growing space of ~30cm x 30cm x 20cm deep (thus my first confirmed successful spawning of a paro!) In the last segment of the video, the male is tending a reduced number of fry and by the afternoon, no more fry were observed in the nest area. I will check to see for the first signs of any surviving fry. I have good cultures of infusoria, microworms and artemia as foods. Water changes of 10-20% each week are done.
The
PAROSPHROMENUS PROJECT
