In my 10 gal. i have my group of guppies...i think that 3-4 of them are pregnant, but i cant tell! their gravid spot is really dakr, but they really aren't that big around. Also, whats the full length of an adult guppy? one of my girls, Big Bertha, seems to be about 1 inch or 1 1/2 onch total...shes huge compared to everyone else! i just need some good advise to go by, and if anyone has a side picture of a pregnant female and a non pregnant female they could show me i would appreciate it...THANKS!!! *GOLDFISH*