Dick is not a troll.....he has an easy way of looking after his fish
without needing to be a chemist....if it works for him why should any
the rest of us disrespect his experience...it might not work for all of
us but afterall a good water change and tank maintenance regime is
really the answer to a lot of ills....you don't need to be a chemist to
know this....just a good fishkeeper....

Gill