A local to me has recently had his tank completely go belly up. Friday before last, the calcium reactor had new media put in it. I don't know if the old media was removed prior to adding the new on top of it.
The following Monday, a friend tested the water and testable parameters were in range and corals looked good. The following day, the corals were starting to look really bad, with SPS RTN'ing, and even corals such as Caulastrea suffering. Parameters tested the same as the previous day. A large water change was performed and the calcium reactor taken off line. The corals stopped declining as fast, but then a couple of days later (maybe the domino effect from the initial issue?), even the fish started dying off. His clam, rics, a large Favia, and a few other things are still doing okay, but he's now losing fish and other inverts.
I suspect some sort of contaminant, but wanted to see what everyone thought. Could leaving old media in a reactor cause something like this? What else would you collectively suspect?
The following Monday, a friend tested the water and testable parameters were in range and corals looked good. The following day, the corals were starting to look really bad, with SPS RTN'ing, and even corals such as Caulastrea suffering. Parameters tested the same as the previous day. A large water change was performed and the calcium reactor taken off line. The corals stopped declining as fast, but then a couple of days later (maybe the domino effect from the initial issue?), even the fish started dying off. His clam, rics, a large Favia, and a few other things are still doing okay, but he's now losing fish and other inverts.
I suspect some sort of contaminant, but wanted to see what everyone thought. Could leaving old media in a reactor cause something like this? What else would you collectively suspect?
