To me it only stands to reason that something that will kill people can't be good for corals & fish either but interestingly enough, I know a few people with incredible reefs that smoke around their tanks. That said, since smoking causes people's skin to turn yellowish, wrinkled & leathery over prolonged use perhaps the changes it causes in the coral's tissue looks cosmetically appealing to us but I am pretty sure a few of my buddy's corals have a bad cough & can't taste their food.
