Out of the 6 that we have bought ... 3 a few weeks ago 3 the other day only 1 of them has lived.. ..The two males we bought are doing just fine... and all th other fish we bought are doing well too.. wtheck is going on with the female fishes.. 2 of them seemed to get this white stuff on only one side of them and died.. the others just checked out

anyone else have issues with female guppies?
No i cant say i have they keep breeding . My tank has been set up since xmas. I guess they arnt as hardy as they used to be because of inbreeding.
How many gallons is the tank and how long has it been set up? How did you go about acclimatising the new guppys to the tank and for how long? I take it that the "white stuff" appeared on the females while they were still alive- did it look fluffy/cottony looking or somthing else like a slimey coating etc? My initial guess is that they died of columnaris, which is quite a common aquarium desease, but will need more info to go on first before i can be sure

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