I've heard that before, Don't know if it's true or not. You can use old aquarium water as fertilizer, bong water shouldn't be any worse. This is for soil, I don't know anything about using it for hydroponics.
Optimus Pot Reviewed by Optimus Pot on . bong water good 4 plant? my friend told me to pour my dirty as s bong water in the plant i have. he says, "it will make it stronger. is this bs or does it make weed grow stronger? Rating: 5