The water in both tanks is from the same time and place. The tank on the right has Oysters. Oysters are natural purifiers: a single adult oyster can cleanse about 50 gallons of water per day. #wanitaxigo

source https://thechive.com/humor/mcgriddle-rant-girl-going-viral-for-her-mcmommy-milkers/

source https://thechive.com/humor/memes-lack-logicyetspot-on-33-photos/?utm_postid=4754740&utm_editor=4754740_rick

The Poet of Love