Hi, i purchased 3 female swordtails maybe about 4 months ago-ish. One is bright orange, and the 2 others were grey. One female died shortly after her first pregnancy. They were originally in a tank with a aggressive male. They have both now had 2 batches of fry each. When they were both pregnant i kep the male in a net breeder until the fry were all inside another breeding trap. Then the orange fish got pregnant so i put her in the net breeder, then this grey swordtail became pregnant although i left her in the tank with the male. She was very stressed and i noticed one day she had her fry altho i could not see any because i think she gave birth next to the filter. Ever since she has been very stressed and thin, so i moved her into my tank downstairs because i did not want to put her in with my other pregnant female as she might of eaten some of her fry when they were born. Basically, she had her babies, but was getting beaten up. Downstairs she never settled in and was always always hiding, at the very surface or on the bottom. She was even thinner, and had red gills. She was not obviously feeding and she got too weak to even swim and was getting sucked into filter. So, this is the medical part..
I moved her into a little hospital (betta bowl) tank on her own. It has no filter, pump, heater or any decor although i am doing a water change every day. In this tank of her own i expected her to improve because she was not having any pressure to swim on her and she got get food easier altho she seems not to settle in again and basically crawls along the bottom and doesn't eat. I noticed she has a little tiny ball of white stuff on her head. There is also a greeny tinge on her fin. What's up with her and what can i do
Thanks¬
I moved her into a little hospital (betta bowl) tank on her own. It has no filter, pump, heater or any decor although i am doing a water change every day. In this tank of her own i expected her to improve because she was not having any pressure to swim on her and she got get food easier altho she seems not to settle in again and basically crawls along the bottom and doesn't eat. I noticed she has a little tiny ball of white stuff on her head. There is also a greeny tinge on her fin. What's up with her and what can i do

Thanks¬