I stopped using mine because of silica. Didn’t realize it was incompatible and then it threw my pH off. I use Agsil 16H, which I guess probably isn’t stabilized.
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Yeah you want to use Silicon Dioxide in your res, not Potassium Silicate. You could still use that as a foliar spray though and avoid the reservoir problem entirely.
I settled on HDI’s Europonic Silicate when I was looking for a reservoir stable product that wouldn’t screw up my pH.
https://www.hydrodynamicsintl.com/product/europonic-silicate/
I used all of HDI’s nutrients for around 5-6 years before I made the switch to Jacks 321. Their Ionic line is perfect for hydro and was the first time I was able to get true pH stability in my recirculating system.
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It seems like that is the same as potassium silicate? I can’t tell.
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Thanks I guess I’ll have to do some experimenting