Ok so I had a partial crash. You may be asking yourself what this is and I will explain. First off, it's not that bad. Why? Because the corals lost were not as nice as my main colonies. Colonies of SPS did die while other SPS was unaffected. I caught it right at the right time, if it had gone on for another 10-20 minutes, I probably would have no corals left.

Here's what happened...

I took out a rock that was completely covered in nasty gross overbearing brown palys. They crowd out SPS and zoas. I decided that I was going to go and buy a BERNZOMATIC torch and burn them to death. To get the rock out of the tank required turning off a fan and moving a halide. Got the rock out and burned the undesireable palys with great joy watching their insides boil. It was great. I put the rock back in quickly as not to damage any of the SPS. Got the light back on and I was good to go. This was about 6-8 PM the day before last.

So they palythoa toxin released by the dead palys were to blame eh?

Nope.

I forgot to turn the main fan back on. The two smaller fans were not enough to keep up. Yesterday, I noticed my caps were lighter, much lighter, but not white. Tested for nitrates0, trites0, ammonia0, checked PH8.3 CA380 Alk7.5 and Mg1300. Well the CA and Alk were a little low, but not low enough to crash anything. It wasn't till about 9 last night that it got hot enough for me to notice. I bagged some ice, shut down the halides, and everything else is fine.

I lost a red cap , my ugly coral :( , an undata, Birdsnest, a suncoral :(, but other than that everything is good.

It's all about luck sometimes. Double check your fans and make sure you have enough!