BPA baby

https://pmc.ncbi.nlm.nih.gov/articles/PMC5453537/

Really??? Why?

there are plenty of indie low budget fun and dumb movies I remember liking this one https://www.rottentomatoes.com/m/blood_guts_bullets_and_octane

https://www.imdb.com/name/nm0093051/

I use this with moderate success. I think my limited success is the nature of the creek constantly cycling out water.

In the US they can be bought as mosquito bits/dunks https://summitchemical.com/products/mosquito-bits/

It is important to note this is not a poison. It is a naturally occurring bacteria that is harmless to the food chain (Bacillus thuringiensis). That is important to me and, I think, a lot of others.