no disrespect taken, I understand the concept of fiddling with things ad infinitum until you have more crap in your system than you can cope with. I have seen tanks with coral and fish with nothing more than a heater and HoB filter, and I have seen systems with automated everything, kalk, calcium reactor, gfo, biopellets, carbon, zeovit, vodka, dosing pumps, UV, the list of things you can add goes on forever.
For many hobbyists the goal is to have a successful salt water aquarium. The definition of successful is wide and varied. In my eyes, there is a difference in simply keeping the livestock alive and having the livestock THRIVE. To me this means good growth of desirable specimens while keeping undesirable specimens in check. For us this means water chemistry kept within some pretty tight parameters.
Lets use a sample of "wild" water taken directly from a reef in a pristine location as our reference. We want to get as close to this as possible in our closed systems. If we are 96% there with current equipment, and adding gadget "a" will increase our system to 96.5%, is that worth the investment? Will corals live and grow at the 96% standard? Will they grow better at the 96.5% level. Is it worth x number of dollars to inch ever closer to the 100% benchmark? These are questions that only the individual hobbyist can answer, and for many of us, the drive to inch ever closer to that 100% "gold standard" is part of the allure of the hobby, while for others as long as things arent jumping out of the tank or dying, then they call it good.
We can see parallels in other hobbies. Computers, is it worth upgrading to more RAm or a SSHD or configuring a Striped RAID array in order to improve load times by seconds or fractions of a second? For some spending 200 bucks on faster ram in order to shave 2 seconds of a load time is worth it.
Cars- Is adding performance air intakes or fuel additives worth improving performance by a small increment?
I know like I seem to be rambling, but seriously, questions like.. should I add a bio pellet reactor or should i dose vodka, or should i have a fuge are dependent on so many variables that they approach irrelevance. In the end the question one must ask is this. Am I content with current parameters or do i wish to invest x number of dollars for y amount of improvement.
PS look at my sig line lol. Glass, water, fish, all else is extraneous, that kinda sounds opposite of someone with as many reactors and gadgets as i have on my system lol.