Oh I know right?? I noticed, that each betta i owned over the years, the health issues increased and the death rate was higher in the same identical care :( or even better care! My first betta was 7, lived in a bowl, had I think a cut on his side (I dunno from what) so I cleaned his water, added some drops of bettafix and he died overnight. O_O
Now, my newer bettas like Dusk (r.i.p.) had such a weak immune system a simple partial water change killed him... -.- I kinda wish they lived longer too D: and... weren't as susceptible.
Breed for the breed, not for the money; the words any REAL breeder would understand.
You must know nothing in order to know all, for all is nothing and nothing is for all.