Hi, I've been using borax as my sole means of raising TA with the understanding that it also serves as a natural algaecide.

Would it be accurate to say that, if I keep TA in the 60-90 range, I am also keeping sodium tetraborate within appropriate bounds? I haven't found any way to measure sodium tetraborate, so I don't want to raise sodium tetraborate levels too high.

Thanks so much,
R. B.