So I just got back from a few months of travel, and my wife had been taking care of my tank. She did a great job (showed her all the tests etc), but I decided to go ahead, and do a 5 gallon change on my BC, and clean everything up. well I took my heater out, did the change, everything went fine. put the heater back in, and we went to dinner. I came back, and my hammer coral was completely closed up. NEVER has it EVER closed up like this before. My clown's were fine, but the water was a little cloudy. started looking around, and I smelled like a burnt rubber/chemical smell coming from the back of the tank. So I took a closer look, and the heater had snapped, and melted. the glass had actually melted and the contents from the heater looks to have spilled into the tank. I had some new water already made, so I immediately did a 10 gallon change. tested the parameters, and everything looks fine, but the coral is still buttoned up tight as can be. I'm guessing the heater threw out some toxic crap, but my clowns are fine, and my CB is fine, and my CUC is fine. the coral is just locked down. am I completely screwed? is this thing dead now? what should I do? should I do another 10 gallon change?> I'm worried that if I change another 10 gallons I'll have a mini cycle, and put even more stress on the inhabitants. send me your thoughts. Thanks all