I get that, but doesn't answer the question. If I'm not suppose to change the water, when would the appropriate time to send in the next water sample? I would account 7 days to send out and receive the test results, sending out on a Friday and I usually get the test results the following Friday. Now back to my question, is the entire Triton Method and system the same time period as performing regular water changes, or does this system prolong that process, as long as the weekly trace element is performed along side the daily dosing of Core7? Obviously, I could send in water samples everyday or never, but want to to find the recommended time period to continuously follow their regimen (A.K.A. sweet spot). Knowing the amount of research Triton has done and on point with every, I would have thought there would have already been something of a time period already set in place, again obviously with wiggle room. Common sense. With the amount of science and expense Triton has on this hobby, would like to see Triton move in a direction of working with regular customers a little more directly. Not asking one-on-ones, but they have the results of each sample, they could give the extra suggestions as to when and which test should be sent in base on science of the water chemistry patterns. I apologise for rambling, but Triton is a science based method and there are a lot of variables, but science doesn't lie, only deceives. Would have thought a timeframe would have already been in place with the science of this method and not be just a day to day method, if you feel like sending in a water sample great, if not great.