how big do guppies and mollies get

[computer]

how big do guppies and mollies get,

 

[Kissifish]

Can't say for guppies as I've never had any, but my info says most mollies get around 3".

 

[PJGuppies]

Female Guppies will get a little bigger than the males...I have 3 Females that are about 1 1/2 inch and my Male is about 1 inch...I also have Mollies..My Females are about 2- 2 1/2 inches, but I do have a Silver Female that is about 3 inches and my Male is about 2-2 1/2 iches...I think it all depends on the fish some are bigger and some are smaller

 

[Alien Anna]

My adult male guppies are about 1.5 inches, but they vary according to breed (some breeders like to breed for size, apparently). With mollies I have a 1.5" baby, a 2" mature female, a 2.5" mature female sailfin and the whopper of the tank, a 3" mature male sailfin molly. So, depending on the breed, they can reach a fair size. Those are sizes excluding tails, of course, so his actual size is nearer 4 inches!

Apparently their previous owner got rid of them because they were too big and aggressive for her tank. I think they're fantastic but then I do have an almost 4 ft tank.