Who Gives A Fish Forums

Could someone help me out. I've got 2 Kribs from the local pet store and I'm really struggling to tell if they're males or females. They both look female to me, but I've just noticed some holes in the tank and that's got me thinking maybe I've got one of each.

Based on the picture you posted, I think the one above is likely a male and the one below a female. From what I know, sexing Kribs is pretty straightforward. A male's pelvic fins are typically long and pointed, whereas a female's are short and rounded. You can easily find some pictures online to compare with your own fish.