I haven't added anything except reef salt. Ill get some non reef salt and do a water change. ty!
I don't really recommend making water changes just to bring down the calcium and alkalinity, but I do recommend changing salts to one lower in alkalinity and calcium for all future water changes. At a minimum his high calcium levels are going to cause excessive calcium deposits on his pump impellers and the high alkalinity will have a tendency to burn coral tips. I would also be surprised if he isn't getting some calcium precipitation in the tank and on the glass.
.25 for phosphate sounds good to me. I don't understand the concern for that. My tank is about 6 months old and I haven't been able to get my phosphate that low yet. I'm still working on it. I'm using NOPOX and it's helping.
The problem is if you're measuring any PO4, it's a good indication that the rocks may have absorbed a lot of it and is slowly leaching them out, possibly contributing to algae growth. I try to keep it below 0.1 ppm.
I didn't start dosing NOPOX until maybe 8 - 10 months after starting my tank. NO3 was maybe 30 and PO4 was over 1. NO3 came down fairly quick but it took nearly a year before I got PO4 to stay below 0.1. I'm sure the rocks were leaching out the PO4 that accumulated before I started dosing, causing GHA and other algae to continue growing.
That's good to know. I have a lot of live rock and it's been a struggle to get phosphate to stay down. I have had it as low as .25 and thought that was great, but then it went back up to 1 with API kit. I got a Red Sea and it's showing 1.4 with that. Do you use the recommended dosage for NOPOX? I have a 70 gal so I use the dosage for 50 gal of water. I'm considering upping the dosage by maybe 50%.