Let's talk about bio load.

[Dearth]

Another consideration is when setting up a new tank it skims a ton and as the tank matures the amount that is skimmed becomes less and less and that tends to throw a lot of reefers for a loop this can also be said for putting a new skimmer in an established tank

But in the grand scheme of things I honestly don't think there is an accurate way to measure bio load it just comes down to user preference and past experience IMO