Can i use perlite in dwc

sappytreetreeMay 6, 2011

i dont real want to go buy any more hydroton and i have a big bag of the chuncky peright setting around would this work ?

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As long as it's large enough that it wont fall through the slats in the baskets, why not? The water level wont be so high that the perlite will wind up floating.

    Bookmark   May 6, 2011 at 2:14AM
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Just use expanded clay? It can be reused if you wash it down with a bleach/water combo after every few months or so after harvesting.

    Bookmark   May 6, 2011 at 9:24PM
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Or boiling hydroton will kill most of your problems bacteria.
But yeah, perlite should work.

    Bookmark   May 10, 2011 at 10:40AM
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"But yeah, perlite should work."

You sure about that?

    Bookmark   May 10, 2011 at 9:37PM
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"You sure about that?"

Why wouldn't it? Perlite is a well known hydroponic growing medium (same with vermiculite). They both will float, thus it wont work well in a flood and drain system. But in a water culture system (deep water or not), the baskets don't hanging down more than about 25% into the water at most, and in a lot of cases not at all. So unless the water level is set to high so too much of the basket is submerged, there's no problem of the perlite wanting to float.

    Bookmark   May 11, 2011 at 2:18AM
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Little tip: Put something over the medium to keep it from getting light. Otherwise it will get algae pretty fast. Perlite seems to be an algae magnet. You can cut a circle or square from a black plastic bag and put around the stem, for example. Perlite works, but if you didn't already have it on hand I would suggest not buying any. It's a little expensive and there are cheaper media that work perfectly.

    Bookmark   May 11, 2011 at 12:44PM
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