To me, its all about clean, clean water. I have great filtration and 5-10 turnovers per hour in my tanks. I also powerfeed since 99% of my stock are juvie growouts. Fish thrive on clean water. I have well enough BB housed in my media so there is never a mini-cycle issue.
My fish love fresh water. They scour to the corners because of my python(s), but almost immediately after I pull the pythons out, they are swimming joyfully like they just won the lottery.
Imagine this, in the wild, fish have an infinite amount of turnover and clean beneficial water - constantly. And what you guys might even scoff at more is, once I get JK47's ass over to my place to setup my drip, it will be equivalent to DAILY 50% WC.
Actually in the wild, esp in lakes, the water isn't that clean(in a high school limnology class project, I monitored the water quality of a north florida lake by testing it)....Nitrate is certainly not zero and there were traces of NH3 and NO2 as well along with other interesting things. Most people's goal is after cycling, control nitrate to a decent level and also control PH to an acceptable level.