Congratulations on getting the pair of American-flag Fish. I think they are great and I'm not just saying that because they eat algae. They have a lot of personality and the males are very colorful. I have four and hope to have them spawn soon. The oldest male is willing but so far none of the females are taking the hint. The male keeps trying to herd a female on to the moss ball to spawn but nothing has happened yet.
Gene Heitman - 12 tanks (11 freshwater and 1 saltwater), 206 gallons, 20+ species of fish/shrimp/snails, 52+ species of plants ... 10 years ago I just wanted 1 tank with some fish