That's why I asked those rhetorical questions. As a relatively young hobby, things are evolving so fast. And most "gospel" being passed around is nothing more than a collection of people's experiences. Very little controlled, scientific studies. But that's OK, with time, most bad information gets exposed, anyway. And with some guidance, we pick and choose which ones to use.
I put great value in sharing experiences, we all learn from each other this way. That's one reason I'm active in this forum, hoping to learn and also hoping to share my mistakes and successes. No need for someone else to kill a coral the same way I killed it.
Speaking of mistakes, or "human error", or brain fart: I left for a few days for Christmas with the in-laws. A few days before I left I was messing with my protein skimmer's adjustment, using the gate valve. Baliktad ang placement of the gate valve because of the tight spot, so, instead of the knob facing me, it faces the other way. In other words, turn left to tighten instead of turn right. To make a long story short, I turned it the wrong way and ended up with only droplets of skimmate for about 5 days! And to make matters worse, I deliberately overfed ahead of time to compensate for the 2 days or so without feeding. So, when I returned two colonies of SPS, same species, had RTN in a few bottom branches. Related ba to no skimming? Again, no one knows.
Ay, sorry for the off topic.