Disposing of unwanted or expired aquarium chemicals

[robham777]

Well done sir you just proved my (entire) point in one sentence Perhaps I need to start using fewer words.

I admire the integrity shown by the OP in trying to do the right thing, and think we would all benefit from being more conscious of environmental concerns. I certainly do not advocate pouring toxic substances into sewer drains, but in this case it is what I would do. Hopefully the EPA is not monitoring this thread.