CanadianCowboy wrote:

sorry for another "dumb" e-mail but I just read that some people put
blue food colour in the pond as a replacement for the "official" pond
dye. Is this safe ?

I'd say "yes" - it's safe for you so it's almost certainly as safe, or
safer, than "official" pond dyes (I hate even the thought of an official
pond dye).
It's my understanding, which nobody's seen fit to contradict yet, that the
blue pond dye is copper sulfate based. That's _not_ good for the
invertebrates in your pond.

I know some people think blue ponds look pretty, but I just don't get it.
It's unnatural, and... well, it's unnatural :-)

ps- colour is spelled C-O-L-O-U-R in Canada

Yeah, but it's a whole extra letter :-)
--
derek
Nova Scotia.