Hi randy I've got some Sodium Silicate Solution 75Tw - Waterglass - Liquid Glass is this ok for me to dose and how much would you recommend? I have about 200g tank. I did read your your article but struggled to get my brain around it. Thanks
Sodium silicate
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Randy Holmes-Farley
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The purpose is to encourage sponges, or to try to shift the growth from green algae to diatoms?
If you add about 1 mL of that solution to your tank, it will boost silicate by about 0.6 ppm, which is less than the NSW level. That seems like a fine dose to try, and I'd add it once every 1-2 weeks.
The growth on the glass may shift from green to brownish, at least for a few days until it is depleted again. IME, the brownish haze was less obscuring than the green.
If you add about 1 mL of that solution to your tank, it will boost silicate by about 0.6 ppm, which is less than the NSW level. That seems like a fine dose to try, and I'd add it once every 1-2 weeks.
The growth on the glass may shift from green to brownish, at least for a few days until it is depleted again. IME, the brownish haze was less obscuring than the green.
Randy Holmes-Farley
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It is one mL of the straight fluid, but you can disperse it in some fresh water before addition. Add to a very high flow area and expect initial cloudiness (magnesium hydroxide, most likely) that will eventually redissolve. Maybe add it in a sump away from creatures.
