sexing albino paradise

[glubglub]

i have two albino paradise. i thought one was a female and one was a male but now im not so sure. I know there is supposed to be a difference in fin length (males longer than femals) but i dont see a difference.
They are both also always changing colors, there strips go from bright red to pale red at different times of the day. i dont want then to fight with each other and they are acting strange by swimming slowly in a circle with each other and theres tails get really wide. Any ideas? Thankx

 

[cassandra]

i think they are mating but i am not to sure but it sounds like it