Can sulphur be used to control scum in nutrient water?

by Jim
(Fontana, CA)

This spring will be my first attempt at hydroponic gardening, your site is very helpful. What about a pinch of fine sulphur to control scum?, and would the 2 liter bottle system work better for tomatoes?

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Can sulphur be used to control scum in nutrient water?

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Jan 16, 2009
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starstarstarstarstar 		Use Sulphur to control scum
by: Larry, Webmaster

Remember, Jim, that sulphur is a trace element that plants need and use. The hydroponic nutrient that I use is composed of 2% sulphur so it seems to me that a pinch just may be toxic for the plant so I wouldn't do it. Besides, getting rid of scum is only for aesthetic purpose and does not benefit the plant.

Plants need a good colony of bacteria around their roots to help them fight disease and to help take in water, and scum just may be a byproduct of this bacteria. If the scum really bothers you then I would change the nutrient water, not add sulphur.

As for using 2 liter bottles for tomatoes...theoretically it would work just fine. But in reality such a large plant would merely tip over in such a small container. You could use them if you had some means to support the plant...

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