The betta imbellis is a separate fish from the splendens, period. I'd never heard of keeping a larger group of dwarf males together, but have heard of people doing it with certain aggressive fish like rainbow shark. No idea if it really works as I am too much into peaceful fish to let a group of six fish and their pecking orders ruin my tranquility! Oh, and ladies, I live in Texas, wear Wranglers and Justin boots and I can tell you, cowboy butts are overrated. 