I got this veitamese veil tail (I think that's what he is!!!) in the group of 4 bettas that I rescued, he seems to be curved in his body... does anyone know or think that this hereditary, disease or because of the cramped conditions he was in?
You'll know in about 2 week - month of him living in good conditions and enough space if its genetic, caused by being cramped and if it will ever pass..