between the cats, the guinea pigs, the birds and the fish... we're not going away this year for as long as we usually do - it'll be two nights max this year. And if the weather looks threatening we'll come home early.
The last time we went away for a week I had hired someone to come in and look after the fish and it was a disaster. Don't want a repeat of that, for sure.
im leaving mine for 5 days too. im giving extra live food to fatten them up a bit, but then they will be fed nothing for the time im away. they can manage without food for a week. just do a water change and make sure the filter is cleaned and they will be fine.
Fish are cold blooded, and since they don't expend energy to heat themselves they can go a surprising time without food, 5 days without any problem. Fattening them up won't carry them far anyway, though it could result in leaving a dirtier tank.
I left my babies in my mom's care with carefully measured food in pill reminder boxes while I was on my cruise last week. I just got home and water quality and such has stayed good I do suggest for anyone that plans on having someone feed to do the premeasure thing. I even measured on the slim side just in case.