Angels In A 29 G

[kribensis12]

EDIT: Misread the question.

 

[DiscusKeeper403]

How do I know when they pair off?

You will see them start to dance with each other, showing off and lip locking. They may fight with each other and fan their tails in the others face. You should then see them clearing a spot to mate on and chasing away all other fish from this spot. Then you will see them breed.