Quote:
Originally Posted by ScottMcC
there is a brief article in this month's Orchids magazine about diatomite and mineral retention. Essentially the conclusion is that it will pick up various water soluble salts and retain them within the media despite thorough flushing, and the only way to get rid of them is to do repeated prolonged soaks. This may necessitate unpotting and changing to fresh media while the soaking is going on though.
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That is interesting since there is a product out there that uses the larger sized diatomite as one of its main ingredients and it is advertised as being reuseable a number of times. The product is Aussie Gold.