When I first started, I used the seneye to track my ph and other parameters. My ph was always going down, to below 7.6 even though my corals were fine. I did many things (all except adding ph buffers) to fix it, but the problem kept coming back. Eventually, I bought another ph test kit to check, and realized I never had a ph problem. So, naturally, I stopped using seneye. Just sharing my experience. Btw, problem on ph started after first month... it just gradually crept down.