Haha that's awsome, i went in there a long time ago trying to sell them a point of sale terminal haha. That seems pretty expensive actually for what you paid for it.
maybe in bc it's different? But yea... it's still way better then liquid stuff!
When you mix the dry ferts into DI water you want to store in in the frige or else it will grow fungus on it.. believe it or not.
Good tip for people who are using liquid currently and want to switch to dry, way cheaper