I have always had good luck with my tanks equipment and lately with my fish, but I woke up yesterday to my little Damon the oddest shade of yellow and the light and TV were both on. I checked the tank and the temperature was over 100 degrees. This is the first time I have ever had a Marineland Stealth heater malfunction on me. The cories, loaches and otos are all very active and seem to be okay but I am afraid that Damon is not going to make it. Overnight his fins are thinned and wispy half way up and his mouth looks burned and he makes no attempt to swim but just lays in the top of a tall plant and gasps for air even after I slowly managed to get his temperature back to normal. It is a tortuous thing to make yourself bring a temperature like that down slowly even though you know that to do it quickly will probably just kill your fish. I will have to admit it was a bit faster than I would have done normally but I could not stand the thought of cooking them. I am giving him a mild antibiotic to see if it will help to keep him from getting a secondary infection but he is not eating so he may not last the night. I go in for another surgery in the morning and he was my little nursemaid and buddy this time, this really is the pits. Am I whining? Probably, but I thought if anyone understood you all would.