Paretroplus maculatus eggs, Paretroplus maculatus eggs Options

[fishygood]

My Paretroplus maculatus recently laid some eggs and i dont know if they have been fertilized. The color of the eggs are pinkish. Any suggestions is appreciated.

Thanks
Ed

[Crowned]

Congrats on the spawn, hope they hatch out for you!!

Have never kept them, but found this Link which has some decent pictures of a spawn.

[fishygood]

Thanks for the link......picture of the eggs do look pinkish..... similar to previous spawn from my pair in the past. Only thing is that, i removed last batch of eggs but they did not develop. Dont know if pink means unfertilized and white means fertilized.

[neutrinoman]

Cool fish and congrats on the spawn.

My understanding is pink means fertilized.

It's hard to find much specific on them. One thing I've read is it's not unusual for the parents to end up eating the eggs and some people end up trying to raise the fry independently. Here's one account of raising fry from a related species.
Paretroplus damii





This post has been edited by neutrinoman: Jul 31 2009, 10:47 AM

[fishygood]

Cool fish and congrats on the spawn.

My understanding is pink means fertilized.

It's hard to find much specific on them. One thing I've read is it's not unusual for the parents to end up eating the eggs and some people end up trying to raise the fry independently. Here's one account of raising fry from a related species.
Paretroplus damii

My pair did eat the eggs, but i managed to remove some. I held the pinkish eggs in another tank but eventually they all turned white, some with fungus. No frys........that is why I am asking if pinkish is fertilized.

[duaneS]

Pink to red eggs are probably fertile for Paretroplus. White eggs, probably not.
Was there enough of a current in the hatching tank (did you put an airstone near the eggs?), and was the water temp warmer or at least as warm as the tank the eggs were laid in?
These below were not.

[fishygood]

Pink to red eggs are probably fertile for Paretroplus. White eggs, probably not.
Was there enough of a current in the hatching tank (did you put an airstone near the eggs?), and was the water temp warmer or at least as warm as the tank the eggs were laid in?
These below were not.

I removed the eggs and placed them in another tank using the same water. temperature is the same also. I did not put an airstone and there was very little current. Fungus-like started to grow on some of the eggs and I seperated those. Those that did not i left as is. Next time they spawn again, i will probably put them in an egg tumbler. I will probably soak them in diluted methly blue first.
i was read that typically after the fertilization that it takes about 72 hrs before i see the eyes. Is that the same for maculatus????
Hope the pair will spawn again.....if they do i will post some pictures of the spawn
Thanks

[duaneS]

Because Paretroplus are not mouth brooders, I am skeptical that an egg tumbler would work (might be too much agitation for normally stationary zygotes). The kind of water movement needed, would be the type to mimic parents fanning the eggs, this is why an air stone is typically used for the purpose, or an outflow from a week powerhead indirectly placed might also work. I believe mid to upper 80s F is also needed for the fry to develop normally, I have read reports of fry wasting away in high 70s.





This post has been edited by duaneS: Aug 7 2009, 06:31 AM