All,

Probably more a paranoid post, but thought I would ask to see if anyone else had concerns.

I keep a vegetable garden in the warmer months and routinely bottle my fish tank water for use as a fertilizer in the garden. I have been using Excel (in addition to CO2) in my tank. I previously used a 2x excel dosing, but now I dose according to the label.

Any reason for me to suspect this could be bad for the vegetables, or more importantly the people consuming them? Does the excel simply break down to inert substances after being exposed in the environment for some time?

Cheers,
John