fresh mix

Had a bump in PO4 for the past two weeks, been monitoring but not coming down. I auto-water change 10% / 25 gallons a week split over the seven days and have approx. 30 gallons mixed each Sunday for the coming week using RODI and Tropic Marin Pro salt - Have been doing this for a couple of years...

So my recent Triton test results show a high amount of Manganese, Silicon, Zinc, Iron, and a bit of phosphate. I'm using Tropic Marin Pro. I have a feeling these results could have come more from the RO water and not the salt mix, So I'll be sending a test in for just the water soon. I have 4...