I agree to an extent with what you are saying...however I still believe that the use of medications as the first port of call is not always the correct route to take.
I have zero medications or additives whatsoever. The use of medications should be done under advisement of a qualified vet tech or vet only, not the person working as a salesperson in the pet store who is earning a commision on every bottle they sell.
It makes me cringe when I read how well intentioned owners bombard their fish with the medicine cabinet on the advice of the person they saw at the shop who recommended this or that.
Medications incorrectly chosen will kill a fish far faster than the illness or disease if administered by an owner given poor advice on a fish with guesswork diagnoses or a "maybe" diagnoses.
It is critical that medications and aditives are correctly administered and administered for the right reasons otherwise they do more harm than good.
To me it is simply terrifying how much horrible advice is given in the shops to a worried fishkeeper and what is more frightening is that stores that sell any livestock, not just aquatic, generally do not require their staff to be qualified. A teenager can leave school with basic academic qualifications, get a job in a pet store and start selling animals and medications and additives and advising owners on illnesses and diseases without any training or qualification to do so.
That, to me, is insanity. Is it any wonder sites like this get inundated with distressed owners who follow shop advice and still lose their fish....then get attacked and made to feel like really really bad people by seasoned/experienced fishkeepers?
Every other industry is heavily regulated....why are pet stores...especially aquatics...so slapdash?
Some might say "Well its ONLY a fish"...being a fish still makes it a living creature and we humans are still that fish's voice and guardian.
All we do is pick up the pieces and try to help salvage aquariums for ill informed, disillusioned, angry, distressed owners who followed the advice of that person in the shop who they assumed knew what they were talking about.
These awesome fish deserve better and people wishing to get into fishkeeping deserve better.