Best silicate tester

[Randy Holmes-Farley Verified Community Expert]

what are you using for silicate?

 

[EnterName]

Regarding the test: You can try Salifert. I think it has a detection limit of approx. 0.03ppm.

The Salifert silicate test doesn't show me anything, even when I prepare a test sample with a huge amount of silicate.

That's odd... Maybe a bad batch/lot?

It seemed to be working fine the times I used it together with an ICP test, and I have extremely low phosphate levels so nothing I would think might interfere with it to produce falsely elevated results

Edit: Randy is asking the smarter questions he will probably be able to give a more satisfying answer than I can in this regard.