I have been dosing Soda Ash and Calcium Chloride from large reserves mixed a long while ago and finally have my dosing matching the tank uptake. Now that everything is settled in I am running out of prepared supplements and am not sure of the concentration I mixed up previously. To avoid the lengthy process of reestablishing dosing times I would like to determine the concentration of the supplements I haves been using. I know the concentrations are not according to Randy's Recipe. Would anyone be able to offer some guidelines to use standard dkh and CA test kits with dilutions to determine the concentrations of supplements?