Hello Mike,
I went to the Mr.Pets on commercial drive today and they had a bunch of Labidochormis careleus around the same size as the ones you have. They were like 12-15 bucks each. I pretty sure i saw a female or 2 in the bunch. its a bit of a trek for you but i think it would be worth it.
Thanks again for the aceii's
teal'c AKA Jason