vitz
New member
Experience. I have 40-50lbs but could get buy no problem with lets say 20lbs of live rock in my 75. In the 20g 5-7lbs would be good for a minimalist low bio load, that is also considering a good skimmer is being used. As for life that comes in on good live rock like pods, worms, bacteria all act as food source and overall bio health of a tank. Nothing new here.
So with one tank and no actual quantitative testing or measurement you seem to be claiming that you *know* not only that lr ratios should be based on system volume rather than load, but also what said ratio is?
Have you ever dosed a tank w/ ammonia to a measurable value w/ 'x' amount of rock and then measured the rate of drop of said ammonia levels?
No one can make an assertion presented as fact like the one you're making without actual testing on hundreds if not thousands of various setups (diff volumes,rock amounts,NH4 levels etc).
Fortunately, there are many who have bothered to at least test the lr myth on an anecdotal level.
What would you say to someone who kept a 5-6" miniatus in a small tank w/a fist size piece of lr for 1/2 yr w/absolutely no NH4,NO2,NO3,or PO4 issues. (Or for that matter,someone who's cared for a few thousand tanks over decades?)

Nothing personal,- ANYONE who thinks that hobbyist level tank amounts counts as enough 'experience' to make ANY assertion about husbandry 'absolutes' is seriously mislead, imo. One two, or even ten tanks is an incredibly limited,small,pool from which to take or make any concrete lessons from.
Parroting a 'rule' simply because it's what your lfs, or another experience limited hobbyist told you doesn't make it true
Just some food for thought
