Hi everyone hope everyones tanks are great! I wanted to get some more insight or feedback about changing water sources for my reef tank. I had changed my tank from tap water to RODI water from my LFS but it had negative effects on all of my coral. So i went back to tapwater and they came back to life after a month. My tap water at my home is 30ppm nitrates and i have to get it lower as my tank is sitting at 70ppm now. Any ideas on what i can do or what i did wrong?
Thanks
Thanks


