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its been a while since her last preg....i see her often being plump..i think shes aborting the fry....any comment???

tank size and mates,

it could be possible that the oher fish are eatting all of them.

tank is 20g...heavily planted...with java moss and with floating water sprite covering half of the tank...the tank mates r platies as well and pandas....she just stop...i guess...taking a break..or got tired of...hehehe

anyway, i got other females now that can replace her

when fish get old they stop give birth.

I agree with guppy girl on this,

If the platy is old, it is possible that she has run out of
follicles to produce eggs with, and has entered menopause.
Unlike males(which can produce sperm throughout their
entire mature lifes), females are born with all the eggs
they will have, the are incapable of producing new eggs
when their stock runs out. while there may be a lot of
premature eggs in the female guppy, it is possible that she
can expend them all during her lifetime.

Other possibilities are circumstantial, if there is a
stress in the system, or there is a deficiency in her diet,
the body might shut down ova development. When this
happens no mature eggs are produced to be fertilized.

I am basing my facts on mammalian reproduction to an
extent, but I do believe it applies to most vertebrates,
including fish. I apologize ahead of time if I made a
faulty conclusion, and would gladly learn the reproductive
style of livebearer's, for future reference.

HTH,
Megil.