platy on bottom

[fishrock]

one of my platy has taken to the bottom of the tank and is hiding in my fake root. shes in the tank with another pregnant platy,pregnant guppy and a pregnant molly(who is aborting her eggs). its a 10 gallon tank with about 2 to 3 gallons partitioned off for fry which there are currently 8 on one side and 2 on the other. the molly was being really aggressive with the other fish so at first i thought she was hiding from her like the others. the others stoped hiding because the molly has calmed down a bit but shes still hiding. she doesnt come out for food much and when she does she has trouble swimming and she looks thin. i cant see any white spots or anything like that on her but she does rub on things. besides the fry there isnt anything new in the tank. they've been in the tank for about a month now.
water stats are:
ammonia:0
nitrite:0
ph:7.6
kh/gh shows as slightly hard.


what could be wrong with her? what can i do to help her?

 

[impur]

All your pregnant fish hide in the same root? Sounds like a maternity ward!!!

Its hard to say whats wrong with the platy. Could be some sort of internal parasite, or it may be something with its gills. Can you remove the fish to a QT to help isolate what could be wrong?

 

[fishrock]

i could put it in a bucket of tank water with a airstone. would that help. if its a internal parasite what do i treat it with?
it is a maternity ward with lots of babies.