do i have a pair?

[migueli]

i thought i had a pair of kribs
the female had a round deep red belly and rounded fins while the male(might be another female not sure) has a thinner belly and pointed fins and displays a really dull red on its belly every now and then (just during feeding time especially with live food [blood/black worms]). They also spend time together in a cave i made out of a pot. The reason im questioning the pair is becasue i just saw the "male" vibrating like my female. Is this natural or do i have two females.

they seem to be displaying mating rituals and chasing everyone away from their territory

 

[zos]

Your description sounds like a male and a female. Males definitely can get pink or even red bellies as well. And they will also certainly shimmy at the females. They're pretty easy to sex, though. I'll bet you got yourself a pair, but without a photo I can't say for sure.