I agree with this and still use my diatom a few times a year. Wouldn't be in the hobby without it.The real bottom line secret is my diatom filter, take that to the bank! How can you ever have a tank for years, and years without one? I will never know.... This is NOT a theory either, it is the fact. Vortex Interspace went to of business, I want that patent !!!!. Best tool for fowler and reef tanks ever.. A sadly but forgotten fact. This is kind of cool as well,
As for the tank, for me anyway it is natural thinking. I don't believe in quarantine or medication but I do believe in bacteria in and around the fish as well as natural hiding places so the fish can't see you.
Fish need to feel safe and "think" they are in the sea and not in our living room looking at our cat.