Look -- if you go to my site, and actually have a look at what I am talking about with "deformities" it is for use for when people are purchasing Betta.
It does NOT by any means have to be a "deformity" as in Quasimodo. Nor do they have to necessarily be "culls!"
It is a purchasing guideline for individuals uncertain of whether or not the problem they see with a fish will affect whether or not they can be a good pet. (I was kinda hoping people would look at the actual page and see that, but eh.)
The curled fins Avery has, is a GOOD example of a non-purchasing affect "issue" or whatever you want to call it. (Sorry, Sorrel. Your Avery is gorgeous, and hes the only example I have to use right now.)
Wuv, your open mouth is a good example of a purchasing affecting deformity. It is a deformity, and people who see this type of betta, unless experienced, shouldn't try to tackle helping it.
Now, you two play nice and apologize to each other. Sorrel wasn't calling Avery deformed of even really defective. He has a curly fin. It happens, and it shows nothing bad on the fish -or- the breeder.
Mommy Becca says so!
(And so does Mason and Napoleon, and they are ready to spank some fishy loving bottoms
I'm too young to be using the term Mommy.