I know a lot of people use Physan 20 as a preventative fungicide and tool sterilization chemical. This is proving difficult to come by locally, but a local garden store recommended Consan Triple Action 20. It seems comparable to Physan in that it is an algaecide/fungicide/disinfectant, and even has directions for use on orchids on the package. Does anyone have experience with this product and would you recommend it?