Went to the local fish store this morning to pick up some guppies for my 20g long. Asked for 1m2f, but when I got home I realized the guy had messed up and given me 2m1f. Haven't noticed aggression so far, but I'm wondering if you all think its worth it to go back and exchange one of the males for a female, so as to reduce stress on the one female I have now. The tank is pretty well planted, so they have some areas to hide.