Molly Fish

[qamarjawaid]

Hello i am a new memeber here i just wanted to know why my male molly died yesterday, i am having 2 platy and 2 molly one of my female platy give birth of 50 fry i just seprate then fry are ok platy is ok i just clean my tank and fill with new water then i put the fish back immediatly after 10 min one of my male molly died why i dont know pls solve my probme and i wanted to know how can i save my fry i put them in two seprate jars

 

[fish-aholic]

Did you add a dechlorinator to the water and is your tank cycled?