ARM media and calcium reactor issues

[bigmatt]

So I have been running arm media for the past 2 years, fine and medium in my korillian 1502 reactor. Never had issues when their media used to be the finer coral skeletons, but that changed with the new media that looks like crushed up mined limestone. Seems to have a lot of impurities I have found pieces of slag in the media, and some of the media has an orange discoloration. My sps dominant system has lost color and growth while this has been in use. Have talked to a few others including Adam at battle corals, who had taken his geo reactor off line and started dosing. Curious if anyone else has had the same or similar issues? I have recently switched to a new media, a larger reactor, and a 25% waterchange and my Sps are taking off again. Anyone else having these issues feel free to chime in