If you like smoking Bud candy, yes, keep using it...if not, then don't use it after final flushing. Just water, and only if needed...nothing else after final flushing...the idea behind flushing near the end, is to get rid of most of the nasty tasting nutes leftover in the plant...anything else you add after a final flush, you'll wind up smoking with the bud...I've never knowingly smoked bud candy products before, but ya never know...it might really eff you up!