I have a Beta fish. They are small and colorful freshwater fish.
Are they more colorful than an Alfa fish?
I am not sure about Alfa fish. Beta are small but vary in size.
It was a joke. I do not think an Alfa fish exists. Are the Beta fish the ones that fight if they are put together?
Oh, your joke would make sense if you spelled it ALPHA.  Now I understand. Beta can live in low-oxygen conditions.
Oh yes, how silly of me. Do Beta fish change colors for various reasons?
I do not know. But they do live in rice paddies, ditches and large puddles.