Sup ya'll! My 20 long high tech tank is open. No fish. Originally I was planning on a big school of cardinal tetras and some otos, but then... @stella1979 started posting betta pics and talking about her betta's personallity. NOO I don't need that. So, today I was at Walmart and saw this STUNNING red and blue betta, looked kind of like those pillows that change color the different ways you look at them. I think it was a veil-tale? Anyways, I almost got him then and there, but then thought better of it. I didn't look at any of the others as I was rushed. I would look at all the others next time. Would it be possible to have a betta with about 15 Cardinal Tetras in a heavily planted 20 long? I did a quick bit of research on mu phone and evidently bettas, at least the large tailed ones can tear their tails up with too much swimming room... Should I get a smaller tailed one? What are smaller tailed bettas called?