your tank shoulda quit cold turkey, you turkey
did you drop in the full strength 22mg patch? how big is you tank?
I bet nothing happens as the dose is too small unless dropped it in a 5 gallon tank...
as far as the fish, they are vertebrates and nicotine is a neurotransmitter...they'll get all zombied out a bit if anything.
dunno about the corals and other inverts, doubt its been studied... prob nada
LOL