well, aside from everyone's disagreements, i would think that since you filter the smoke through the water, the water grabs at the miniscule ash fragments and ash is a source of phosphorus so if you're flowering, you could try it, after all, what's a mixture of water, smoke and residual thc gonna do to your plant right? it's not like you're dumping an extra strong concoction of some vegging nutrient solution.

but yeah, i still disagree, go with what the vets say, they know their shit. but for your curiosity's sake, try it, and if there's any effect, positive or negative, let us know because im also wondering what it actually does.
:hippy: