I have two pearl gouramis, one has it's full breeding colours and the other looks as if it's swelling with eggs, but it's got a lining of orange on its bottom fin. if it's swelling with eggs how long until the male will build the bubble nest?
welcome to fishlore(If I haven't already)
I'm concerned with the orange....make sure its not red from ammonia...when was the tank started? ....do you know your tank readings for ammonia/nitrites/nitrates? you have angels, mollies, and 2 pearls in a 13g tank and that is a concern that its more of an aggression issue than breeding as that tank is severely overstocked unfortunately......getting a pic might help us more good luck with things!