This will work too right? I can get it today: https://www.amazon.com/Crystal-Blue-Copper-Sulfate-Algaecide/dp/B000RUN0T6/ref=sr_1_9?crid=2831ZCDFXZRTV&keywords=COPPER+SULFATE+POWDER&qid=1687274829&sprefix=copper+sulfate+powder%2Caps%2C156&sr=8-9
Also, if you don't mind me asking how do you know so much about this stuff?