My huge centerpiece Torch coral decided to kill itself yesterday. Very suddenly, too... an entire head was
bleached when I woke up yesterday morning, and another wasn't looking too good. The third head (also the smallest) seems as good as ever, though... which I find odd. It hadn't been inflating completely for the last week or so, but I figured that was because it was upset at the higher-than-normal water temperature (it's been
HOT out, and I don't have any refridgerator units).
Anyway, I'm depressed. I did a 20 gallon water change (100 gallons in the system), cleaned everything and readjusted the flow on the torch so it's not going to get blown apart.
The thing is, I have no idea why it happened. The only thing that's a little off with the water parameters is the calcium (which I just tested at about 320).... but it's always been low, and I've never had any problems with my corals. Any ideas?
