what's in your water?

SPtheALIEN and i are petsitting while his parents are out of the country. so we've got 2 birds and a turtle to look after (in addition to our awesome guinea pig). so the turtle was staying in the spare room at spencer's house. spencer was instructed to change the turtle's water when he couldn't see the turtle anymore. in other words, we could have the turtle swim in its own filth until the water to crap ratio was almost 1 to 1. after a few days, the water was murky but we could still see the turtle. that's when i made a tragic mistake. believing that the water was still okay, i stuck my head into the turtle's container for an aerial view of the turtle. and then, as most humans do, i breathed in some air. after all, i did need some oxygen in my system. unfortunately, i instead got a big ol' whiff of stanky, old, vaporized turtle feces. needless to say, i changed the turtle's water right after that.