This is a pool in which tilapia live. Gross. It's nasty enough that they have to swim around and drink their own waste all day, but this is like mucky kool-aid. Slimy, gooey, slippery, mucky kool-aid. Figured you all should know what you were going to digest.
P.S. In case you want to know if your tilapia is a boy or a girl, I'm an expert ;)