If you try to grasp an understanding of the saltwater aquarium hobby as a whole and all of its components, yes it does become kind of mind boggling. This becomes even more evident to someone who has been out of the hobby for a period of time or a newcomer. Heck, even to aquarists having dipped their feet into the water for a great length of time will find that they have only scratched the surface in making heads or tails out of the hobby.
Kelvin, calcium, algae and ozone reactors, carbon dioxide, silica, chillers, tumbler media reactors, UV sterilizes, alkalinity, magnesium, iodine, dipping, vodka method and the list goes on and on.
Best thing to do is to break the hobby down into small pieces that can be digested easier than by swallowing huge chunks of information and that get caught up or fused together.
Their is such a plethora of subject matter and propaganda that circumnavigates the marine hobby that to try and ingest it all seems kind of preposterous.
For myself, I keep learning as new techniques, equipment and technology become erected and evolve and inundate us while trying to make sense of the various components that affect our water quality and livestock.
I guess you could say that this is part of the fun and excitement that coexists within the hobby. At the same time this can also epitomize the failures and misfortunes that accompany many of us as we try to reflect upon and react to problematic situations that we have succumbed to.
At any rate, we have taken the hook, line and sinker and are mesmerized, captivated, infatuated and enthralled by this very rewarding and beautiful hobby, albeit expensive!
Best of luck to you and everyone who is part of R2R and a marine aquarist...