I'll always be pressing for the removal side of the equation though.
the
market is shifting to what we
add to reefs to keep them in top condition
but there's a hidden free
market that exists on what's
removed from a current reef tank to keep it running well, and that's long-term tested. shown to be a marked powerful method of invasion control too in reefing; to be export-oriented vs addition-oriented in reefing.
reef tanks are always accumulating floc
storing that, and justifying it in one way or another causes a lot of problems, it's like a mouth that doesn't go to the dentist.
but in systems that practice precision grazing as needed via tools to be uninvaded, while keeping all waste out of accumulation pockets in the system, allows naturally-imported reef microbiome constituents that do a perfectly good long term job on their own. without additions or supports. traded on hardscapes tank to tank.
spending effort to remove or design out collections of waste in the home reef system is better for long-term care than concern over adding to/boosting up strains. that's a for-sale angle, that matters in choosing best practices.
if you backflush a filter regularly and prevent clogging of surface area it tends to do fine with the original seeding. our reef tanks are giant surface area filters that benefit from high flow/ejection of waste vs storage designs.
my system is 18 years old and has never had it's microbiome added to other than frags. it gets regular dentist visits, that's why it's 18 vs a new tank. export based controls are powerful too, and they're free.