I just have a quick question. My curiousity has gotten the better of me and I can't find the answer anywhere on the internet. I am just curious as to how bettas choose mates. I read somewhere that they choose mates by finding a partner that looks similar to themselves. Is this true? I have a male in a divided 20 gallon right now with a female on either side. The male is white as is his sister and the other female is a lavender butterfly. Now the male is showing interest in the butterfly and not his sister. So I am just wondering if anyone has heard this theory about like choosing like or is this just bogus?