Use of Chemicals to improve growth

[ormondsview]

I'm new to the forum and don't see where I can start a new thread so I'm just jumping in here under chemicals. I followed a posted link about using minerals to help propagate. Here's the site BM-1 TERRESTRIAL ORCHID MEDIUM - Orchid Culture - B138 My method of buying orchids is to get the spent ones from an Oriental market and repot and hope for surprises. Usually we have the run of the mill paphs in the supermarket. Other than that, I troll the plant store on the day of new shipments and will buy what catches my eye. My conditions are not optimum as we have very cold winters in Ontario and grey skies for months. So the hanging plants in my glass room are not in a steam bath but at 60 degrees at night 68 degrees day with 55 percent humidity. I would like to use some of the grow better ingredients to improve new growth. Can people take up a discussion around how they feed their plants using any products to improve success.