Ok, stats:
1) 55 gallon
2) Two indwelling hanging filters
3) About 20 fish (platies actually) plus 3 cory
4) Ammonia 0
5) Change 20-25% water every 2 weeks (water bill too high at weekly, though I prefer it).
6) pH in tank water..6.6
She is a female and I have had her for about 6 months...she was full-grown when I got her, so guessing between a year and 1.5 years old. She is VERY perky still...no clamped fins, etc. Just super skinny. I haven't noticed any funky feces coming out. Could she just be getting older so not able to be pregnant and hold weight as well?
Dawn