agreed this is a very good post to critique new cycling science claims against post patterns and predictions on what a reef will do given a set of moves, he wants to add more fish and is wondering if a filter can handle it.
might even be tempted to add more bacteria, that's our training its what most would do. bottle bac sellers have written cycling rules, so far
the rule of surface area activation in reef cycling says that once you can handle waste you are orders beyond what your current bioload demands. you have room for errors; a lost fish and snail. or an overfeed event, or add more fish
you have a shock absorber, able to modulate system not a locked in place then undo system.
We prove this tenet daily in the sand rinse thread: any reef who wants to join right now we can remove your entire sandbed instantly, robbing you of that much surface area, and your whole system proceeds even if you added new fish right then
The number one false driver claim for bottle bac sales unneeded is the claim that by dosing more bacteria to the water, they implant and do their job
that's untrue. water shear, natural competition for vital space regulates how high bacteria stack up on microlayers on the rock, that's why us feeding a bit much on a Thursday is processed, not stacked
it is cast off as skimmable mass mainly
water changes export much of it after adding. its certainly not harmful to add cycling bottle bac after an initial cycle, that's why sales repeat, but its not helping.
This tank above is cycled therefore fish disease is the regulator of adding fish, not ammonia control.
there is no time after cycle that adding fish causes a brief period of noncontrol, that's merely a brief period of believing an api test, but its not lack of ammonia control.