All the bad advice I was taught as a kid was pure ignorance of basic tank health........ Interesting that most of the tank between 60-2000 never even knew about wc guess the water quality had something to do with it?? Or the fish used to be hardy before all the X breeding.
Anyways great thread and thanks for all the responses! Keep it going!!
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Tap water quality nowadays isn't the reason for wc's, we just have better water conditioners for that.
Fish weren't any hardier back then either. They always became diseased because the horrid tank conditions weren't corrected.
None of my fish sources ever mentioned testing water or changing it when I described sick fish & bought meds.
The only disease meds I've needed for years & years, has been because of fish bought with prior exposure to something. Equipment failure, temp drops, etc can cause problems, but usually don't progress to needing real medications.
;-)

