congrats on doing your first flush. the green sludge could indeed be from the liver, or it could be undigested stuff from the green drink. i've taken chlorella at times, and it does turn my poop green. i've also noticed when i eat tons of squash, my poop turns alittle orange, and sometimes the texture does change as well. so its not really obvious whether your green sludge is stuff being released from the liver, or sludge made of the green drink itself. it could be either one. i know there are herbal combos expressly for the liver (ie. the schultz liver formulas), but i'm not sure whether they work like this where they get the sludge out in this form. perhaps someone else (uniquity?) that has experience with this can answer.
Lisa
ps. now i really like this title - "green sludge calling uniquity" - its like the creature from the black (ok, green) lagoon.