I am now in the market for new sticks. yesterday marked a milestone of weekly water changes using Tropic Marin Pro. I have changed out 220 gallons of water. TPM is not a cheap salt like my old salt IO.
My water changes looked like this:
Week 1 = 60 gallons
Week 2 = 40 gallons
Week 3 = 40 gallons
Week 4 = 40 gallons
week 5 = 40 gallons
My nutrients are very low at this point. I see no reason to keep up the weekly water changes. I am going to move to the biweekly. Save a buck on this salt. I do like doing them weekly though. My system is relatively easy for removing water from the tank. Doing weekly water changes ensure that I have my trace elements and the only thing I have to dose is alk. Every once in awhile mag and calcium.