I just think the novelty of these type of displays was up in the 90s, It’s time for an upgrayedd. I propose leprechauns flying up and down the river wearing water jet packs, shooting people with their Chicago-style hot dog cannons would be more with the times. What’s your idea?
Honestly this is the thing I’m most worried about. I have little doubt that it’s been studied to be non-toxic. I said as much in my first comment. I’m more worried about more-difficult-to-study effects like on the behaviour of the fish.