I work nights, so I feed the fish right before I go to work, and i do put my hand in the water to shake the food around a bit. and it did feel fine... I came home from work (6 hours later) all lights are off, so i go to bed, woke up, and when I went to go feed them that's when they were half dead..
my friend has one of those temp alarms, he said there junk. the alarm noise is so low, he said that he has to be in the fish room to hear it... they should be louder.. with all the bubble noise going on.. that's what he said and I trust him, he's been in the hobby now for almost 50 years...
the heater controller was still working, the probe just stopped working, I checked the fuse and still nothing, I plugged the probe right into the wall socket thinking that the controller might be defected still nothing... I had to remove the dead fish, drain some of the water and added a small bit to try to help warm it up a bit.. then I drained again, and left it low, so the heaters that I did have could heat the water.... 6 hours later they were all gone....
my friend has one of those temp alarms, he said there junk. the alarm noise is so low, he said that he has to be in the fish room to hear it... they should be louder.. with all the bubble noise going on.. that's what he said and I trust him, he's been in the hobby now for almost 50 years...
the heater controller was still working, the probe just stopped working, I checked the fuse and still nothing, I plugged the probe right into the wall socket thinking that the controller might be defected still nothing... I had to remove the dead fish, drain some of the water and added a small bit to try to help warm it up a bit.. then I drained again, and left it low, so the heaters that I did have could heat the water.... 6 hours later they were all gone....