molly sex change

[raymond.1963]

i have a large male dalmation molly and have bought 3 (female) mollies but every time they turn out to be males i know it sounds daft but from my fish shop they are not old when i buy them are me and my fish seller doing somthing wrong but for 6 months no fry

 

[Fishkeeper26]

If your buying them young then you may just be unlucky and getting all males.

Can you answer a few questions about your water...
What size tank?
What else is in with them?
What are your water parameters?

 

[raymond.1963]

maybe unlucky but last fish was well picked and is now definatelly male kept with 4 male guppies 3 corys 1 angel and ( bruce) bluecray 20gal ph 7.4 nit 0 amm 0 nitrate 10 the main question is do mollies have an age when there sex is set