From a 40,000ft perspective.... I would say the WORST advice is....
.... from posters who think successful reefing is a matter of SCIENCE
I think there are thousand of tiny factors that make up a mature tank. You could have two identical tanks side-by-side, and tankA grows SPS like crazy and tankB SPS recedes and dies....even though the tanks are IDENTICAL.
I see far tooooooo much ART and tiny hidden husbandry skills beat out SCIENCE every time.
So when I read a poster who says, "Scientifically you should do steps 1, 2, 3, 4" .... its probably 75% great advice, 25% pure luck to get it CORRECT in your own tank.
I think that what we do should be 'based' on science. but each individual tank is an art - the art of choosing which fish, coral etc - though those are also based science. Alkalinity testing is based on science. Etc etc.
If what you are saying is that there is no 'cookbook' approach that leads to a successful reef 'all of the time' I agree. Most of that though is not the problem of the cookbook or the 'science' its the fault of the cook's (so to speak) interpretation.
