I keep two males in a ten gallon divided tank, they do just fine. At this point they've grown a little bored of each other, actually, they don't flare at each other as often. Nettle is out of the 10g for a while for fin rot, though, so I'm thinking when I move him back in they'll be flaring again.
But yeah, 10 gallon must be divided.. in a much larger tank it would be possible for an experienced fish keeper, but ten gallons is just too small.
♂ Nettlestung ♥ Pastel/Cellophane HM [RIP]
♂ Stormrunner ♥ White Marble dtVT [RIP]
♀ Willowisp ♥ Cellophane Marble VT [RIP]
♂ Skyshatter ♥ Butterfly Halfmoon [RIP]
♂ Starchaser ♥ King Plakat [RIP]
♂ Heartseeker ♥ Red/white DeT