Need help setting up doser-Calgary

I'm sorry to hear that. Don't pack it in just yet.

Have you figured out how much to dose to maintain your water parameters? Pick any time of day and do your water tests for all 3 (CAL, ALK and Magnesium). Go on the bulkreefsupply website and use their calculator to find out what you need to dose to raise your parameters back to normal levels. Dose your tank manually.

Now the next day do another test at the same time as the day before. Whatever the difference is, that will be your maintenance dose. Then depending on what is low (most likely ALK), increase it in equal parts. If you need to dose 15ML to raise the ALK up 1 dKH then make sure you dose the same amount for CAL. In the morning dose Calcium and in the evening Dose Alkalinity.

Keep at that pace for the next 3 days and then do another water check at that same time. Once the test results confirmed that your water parameters are that level that you want, it should be stable. Then setup your auto doser according to what you have it set for.

Every two weeks, do another water test and adjust your maintenance dose accordingly. If you do large water changes of 20% or more, your ALK will raise accordingly. This could STN or RTN some of your SPS corals. So my advice is to keep your ALK at a higher level not at 7 dKH.