Last Summer, there was a week of really warm weather during a time that I was out of town. As my wife doesn't use the AC anywhere near like I do, my tank got quite warm. The water was probably in the mid-80s for a week or more, before I noticed that ALL my ricordeas were just melting away. Well, all save one colony of blues. I started keeping RODI water in the fridge, and would replenish with that cool water to keep the temp down, and also kept the lid off the tank when the lights were on. Still, I lost all my rics except that one colony.
All of the tank parameters were in line with where they have always been. Except of course, the temperature.
NH3 < 0.25
NO3 < 2.5
I really love the ricordeas, so of course, I was crushed by the loss. Until that time, they had all been thriving quite well. Ironically, I had considered them my most (re)productive corals. Now, I am wanting to put some more back in the tank, but I am worried that I am missing some other part of the equation. Is there anything thing that ricordeas might need that other corals would not? A trace element, or perhaps something else that I need to solve for, first?
Any help is appreciated!