I recently dosed 1ppm of WaterGlass for silicate’s just to see what effect it would have on my Dino’s as they have shrugged off everything I’ve tried. The goal was to target 2ppm over two week’s, but when I hit 1ppm the tank was getting a bit dirty. Not bad, but you could see it was fixing to get out of hand a little. Initially, I saw some really positive effect’s maybe somewhere around 0.5ppm. I definitely think it’s beneficial at lower levels and I can see why you would dose it.