Question for braintrust- if i wanted to fertilize to help baitish out, What test do i do to see if thats a good idea
You need a Secchi disk and a swimming pool test kit to test Alkalinity. Don't fertilize if the secchi disk reading is less than 36" and do not fertilize if your alkalinity reading is less than 40, although I'd prefer it to be higher than that. (mine is 180).