It is on Amazon. Apparently you don't need much. It is supposed to really kill the fungus gnats. They recommend a cup per plant if the plant is already established. I am going to give it a whirl and see if it does anything. I am thinking of it for my potted plants more than anything.
Oh yea! Two seconds of sun. Need to clean out my fountain before it starts raining again. Got messed up with all the wind yesterday--lots of downed trees as the soil is saturated. It is supposed to snow here on Thursday morning. Oh, yippee--NOT! Nothing like driving to class on ice and snow when there is no equipment to sand the roads and no one here knows how to drive in the stuff. What fun!