Not well, I'm afraid. Two weeks ago I came downstairs in the morning to check in on the tank and I saw most of my corals retracted, some looking really bad. A water test confirmed ammonia! How? From what?
We did a massive water change. Retested. Much better. Okay, phew! Caught that one, but where did it come from?
Next morning, same situation! This time, I have corals dying. Fish are twitching. What the hell? Another water change. I started to look for something dead and decomposing in the tank. All fish and major inverts were accounted for. I carefully moved rocks and sand just in case. Nothing. I checked the sump. Nothing. While I was doing all this, Hutch checked the ATO... bingo.
My ATO was slimy to the touch on the inside. I was filling it with pristine RODI water only to have it become contaminated before it got pumped into the sump. We pulled the ATO out from the cabinet and I scrubbed it and the pump with bleach.
The ATO tank got contaminated because the tube that went into the sump fell into the sump water. Bacteria backtracked to the ATO. It's really dark under there, and I never noticed it. Epic fail. I don't check under there much since everything is so automated.
I've lost my torch, hammer, chalice, duncans, candy canes, some zoas, and a few heads from my huge frogspawn colony. I wasn't fast enough. I'm heartbroken, and feel like a failure and an idiot of massive proportions.
No fish have died, and my three sets of mushrooms have exploded with growth. Go figure.
My three leathers survived. So did my brain, some other zoas, and part of the frogspawn. [emoji24] [emoji24] [emoji24]
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