American-Flag fish

My experience? I have a male (female came sick and died in quarantine after a month). He is an uber-nasty fin nipper, and decided he is a male Bolivian Ram, constantly harassing the female and chasing off the male. Oh, did I mention he preferred to eat my star grass and HM and poke holes in many other plants rather than eat hair algae? The FFF around here are very cheap ($1.99) and wild caught. Perhaps you'd have a better experience than I. The female wasn't as bad. I switched him over to another tank and he started terrorizing the endler's in there. Grumpy now lives in a bucket until I decide what to do with him. I keep and I've kept cichlids all my life - this is the most aggressive fish I've owned for his size except for pseudotropheus demasoni.

From Aquahobby: Not a community fish! I bought three males and returned them after three days! They settled in nicely and went to town on the algae in my 100 liter tank. However, they aggressively pursued my three panda corys and my two guppies, tearing chunks out of their fins, and also were attacking my other plants that I did not want destroyed. They did not bother my scissor tail rasboras, thread fin rainbow, lemon tetras, dwarf puffer, and von rio tetra. They also ignored my shrimp. I was so disappointed to have to return them for the safety of my other fish, as I thought they were very entertaining and beautiful. The fish store manager did not believe me as he never had a problem with them himself. A single Flag Fish might have been better, or perhaps a female, but I'm not sure I want to risk putting them in my tank again.