Looking for a recommendation on a good test kit for my salt system. I have been bringing my water to LFS one told me all was good next day another told me I had high phosphates nitrate and nitrites. And rexommwbding that I change 30% of my water. Now in between the two test I did have a bit of disturbance in the sand bed adjusting the water flow. My kids were also feeding the fish daily which I also now may be causing the problem.


