Oh of coarse I can do that! I'm doing the GS foam for the build. All in all I'll have a water fall flowing into a 'river' considering that they in the wild live in or near plants along a river or permenate water source. And a rain system so that I do not have to water the plants that are planted into the walls. And so that I do not have to disturb them while misting. But how exactly would I clean the plants of pesticides?