wrote:

I didn't realise I bought the binary kind instead of the single
tablet kind. This one has a blue and a white tablet - sealed
separately. Says organic chlorine bleach by WD-40 company (sheesh,
thought they made motor oil). So what's so reactive on shelf that
ain't gonna explode together in my tank?

You are missing the forest for the trees. It is supposed to go high
order.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf