so, a month ago, my girlfriend got me a white betta with red fins. not too big of a fan of him as it was somewhat odd looking. but i have found a sort of spot for him. he died :/ sadly :/ but i also had found the matching (as if seperated from birth) female for him, i bought her and had them together for 2 or 3 weeks before they died a day apart from each other. my question lies in, what are rare colors? those 2 were the only white with red fins iv ever seen. more so, at the store i last went to to buy the betta i have now that im scared will not make it, she had a all white double tail. i feel as though i should jump on it, as most all whites iv ever seen have a pinkish tint, and this one looks to have more of a blueish tint (could just be lighting) but mainly what are rare colors?