Is this a suitable sodium silica solution?

[Willbiker]

Hi. I am battling the dinos and want to dose silica in order to promote a diatom outbreak.

Is this a safe sodium silica solution to use? Its waterglass sodium silicate solution 40%.

https://www.ebay.co.uk/itm/164048535473

Thanks

 

[Randy Holmes-Farley]

Hi. I am battling the dinos and want to dose silica in order to promote a diatom outbreak.

Is this a safe sodium silica solution to use? Its waterglass sodium silicate solution 40%.

https://www.ebay.co.uk/itm/164048535473

Thanks

I expect so.

One cannot generally find high purity silicate