In trying to kill off some rampant bamboo every where around the garden I
want to spray glycophosphate around a small garden pond.

Since any spray that falls on the pond is likely to become very diluted
immediately; is there any potential danger to the goldfish with such a
spray? Thanks for advice.

p.s. I know this post should really go in a 'pond' group, but just looking
at several pond groups they now seem inundated with spam and rubbish.