I totaly agree. Saltwater is not to much different then freshwater with fish only systems, but when it comes to corals and inverts then you really need more. And keeping the best water you can means good filtration, WD and skimmer. It also means RO water and a very good Salt Mix. Alot of planning goes into reef tanks, and biorbs are very small and would not be good for coral that demand prestine water.