No matter how many testing and how many chemicals added. One cannot deny the fact thst wc is the basis of fish keeping.. Why reef if the simplest most basic thing one also refuse to do? Can you imagine urself living in a cell with constantly recycled food and air? Yes u can survive short term, but can u thrive and survive long term even if i fed you with supplements and chemicals? Im not against any products. But im simply saying that no fish keeper espcially reefer should have the mind set of no wc.
My 0.2cents