Shoving food in a lamp lol! It sounds so dumb, until we realize we should have given themm more specific instructions. I come back, and I am like OH NO! THE AMMONIA LEVELS ARE GOING TO BE HUGE! Did a 70% wc, and then a 20% skimmer 6 hours later, and everything is fine. Of course, my sister so generously fed Sparky after I told him I want to fast him for a few days, but they are all good. Right now, I use a conventional Gravel vac for wc, and it is a lot harder, especially when you are transporting 5 gallon buckets from my room, to the bathroom toilet lol!