I just got back after being away on vacation from Wednesday to Saturday. My wife performed a top-off for me on Friday. She didn't feed the fish but they were fine. They were all okay and at well today when I fed them. The tank was a little dirty though moreso than normal. I don't understand because the only thing I would have done during the three days was clean the glass. The one big problem was a MH bulb which burst. Luckily only a few glass fragments fell into the tank and most of it remained intack. I was able to unscrew the remaining piece and remove. Other than that all else seems to be fine.