Very good topic to bring up MW! (and Sarah, please don't feel we are "piling on" as its just a good topic for all beginners - we hope beginners generally read a lot of the threads in this forum I think)
I think sometimes in our effort to gently coax newcomers into the idea that this long drawn-out thing of Fishless Cycling is a good thing, we necessarily are writing lots of words to describe the processes of both fishless and fish-in cycling. Since any normal person who is excited about their new hobby and wants to quickly have a pretty tank is pre-disposed (or forced in most cases by decisions made before they knew) towards fish-in cycling, the situation can easily arise where the written descriptions can make it sound just like a "fork in the road"...sort of a simple choice that got made and so now we just do what we have to do (which is true of course!)
BUT, from the fishes point of view I would think these would probably seem vastly different paths! The picture comes to mind of standing in a bus repair center with all the buses running and the exhaust system has just broken. We, as humans, could easily imagine how much we would want to rush outside and quickly get some "fresh air!" But Fish-In cycling is sort of like someone saying, "No, you need to stay in here with the exhaust and periodically we'll be along and turn on a little house fan for a while over here at this window!"
Despite our manual efforts to dilute the poisons down below 0.25ppm in Fish-In Cycling, its really a pretty lousy situation for our fish, so much so that many species simply die in the situation and the lore builds up that "yea, you need to use good "hardy" fish to "fish-in cycle" an aquarium."
Anyway, for other beginners reading Sarah's thread here, its a good thing to think about, that Fish-In cycling is really a much worse choice from the fishes point of view!
~~waterdrop~~